Marioplex

Marioplex is a large number named by YouTube user in a video called "Game Theory: Super Mario Maker, BIGGER than the UNIVERSE!". It is equal to 1012,431.

History
MatPat invented this number on August 6, 2017, when trying to calculate the number of possible levels in the game .

This number was calculated by repeated use of the, and represents, very roughly, the fraction of the number of possible levels in the aforementioned game that are both fun and completable.

As the exact number of levels with said properties is impossible to calculate, a was used to define the number.

Size
As it is larger than the googol to the 100th power, Marioplex far surpasses the number of atoms in the.

In fact, many googols of copies of the universe would be needed to have even a small fraction of a Marioplex of Planck volumes, the smallest possible amount of volume that is thought to exist.