## FANDOM

10,843 Pages

ThickafourtwelvearialearthÂ is equal to \(10^{2134524089369833840415}-1\).Â

This is the first number coined by Brazilian amateur googologist Daniel CorrĂȘa.Â

It is a Class 3 googologism, andÂ its decimal expression is:

99...999 with 2134524089369833840415 "9's"

## Creation process

The creation process ofÂ Thickafourtwelvearialearth has a "physical meaning":

1. Write a complete line of 9's in a Bond A4 Copy Paper 75gsm using Regular Arial 12 as font;
2. Measure the length (3.15 mm)Â andÂ width (1.9 mm) of number nine,Â and the space between two nines in sequence (0.42 mm);
3. Measure the thickness of the paper (0.103 mm);
4. Imagine the Earth as a perfect smooth sphere with radius equal to 6371008771.415 mm, value ofÂ the mean radius as defined by the IUGGÂ using the radius ofÂ theÂ WGS-84 ellipsoid;
5. Imagine you cover the whole surface of the Earth with a flat spherical spiral in vertical position, this spherical spiral made of a paper strip with 9's written on it as described in (1.);
6. From (2.) and (3.) you can conclude that the paper strip is 3.15 mm length and 0.103 mm thickness;
7. When doing some calculations, you will find that the total widthÂ (W) of the flat spherical spiral made of a paper strip as described above is:Â 4952095887338014509763.439 mm;
8. Knowing the width of the strip, find the number of digits (n) written on it using n = (W+0.42)/2.32, that is:Â 2134524089369833840415.456.

## âNaming

UsingÂ Jonathan Bower's -illions series,Â ThickafourtwelvearialearthÂ can be named as shown below:

 Illion name for Thickafourtwelvearialearth. 99 Ninety-nine undeciseptingentiatto-octoquingentifemto-novemvigintipico-novemoctogintiseptingentinano-quattuorquadragintinongentimicro-tredecisescentimilli-unseptuagintiquadringentillion 999 Nine hundred ninety-nine undeciseptingentiatto-octoquingentifemto-novemvigintipico-novemoctogintiseptingentinano-quattuorquadragintinongentimicro-tredecisescentimilli-septuagintiquadringentillion ... ... ... More 711508029789944613463 groups of illion names, each one preceded by nine hundred ninety-nine 999 Nine hundred ninety-nine quadrillion 999 Nine hundred ninety-nine trillion 999 Nine hundred ninety-nine billion 999 Nine hundred ninety-nine million 999 Nine hundred ninety-nine thousand 999 Nine hundred ninety-nine

â

â