Minecraftplex

Minecraftplex
Minecraftplex is a large number named by Austin Hourigan  in a video called "Minecraft DECODED! How Many Diamonds Exist? | The SCIENCE... of Minecraft".[1]  It is equal to 1010 215.

History
Hourigan invented this number while attempting to one-up MatPat's Marioplex(the number of possible, completable, and fun levels in the game Super Mario Maker.) by calculating the number of different placements of blocks in every Minecraft world possible. The number first appears at the 15:08 timestamp.

Size
The only direct reference Hourigan gives to the size of the number is that it "can't actually be displayed on anything since it outnumbers the atoms in the universe by a fair amount".​​​​​​