Q. What number has 100000000000000000000000000000 zeros

A number with 100 octillion zeros (10²⁹ zeros) doesn't have a standard name in conventional numbering systems. To put this in perspective, even a googolplex—10 to the power of a googol, where a googol itself is 10¹⁰⁰—contains far fewer zeros than what you're describing. The number you're asking about would be 1 followed by 100,000,000,000,000,000,000,000,000,000 zeros, which extends far beyond named numbers like centillion or even the largest systematically named numbers in the Conway-Wechsler system.

In mathematical notation, this would be written as 10^(10²⁹), representing an incomprehensibly massive value that has no practical application in physics, astronomy, or any known field of study. For context, the estimated number of atoms in the observable universe is around 10⁸⁰, making this number astronomically larger than anything we can meaningfully relate to physical reality. Such numbers exist purely as mathematical curiosities and demonstrate the infinite nature of numbers, though they lack the standard nomenclature that applies to smaller large numbers like million, billion, or quintillion.