A duotrigintillion or triginti-deutillion[1] is equal to \(10^{99}\), or one-tenth of a googol.[2]

In the long scale which is commonly used in France and Germany, \(10^{99}\) is called sexdecilliard.

Sbiis Saibian gave the name googolchunk, referring to the value of this number.[3]

The number is also called pen-bitillion by SuperJedi224, and it's equal to H*(25) = H*(32) using H* function.[4]

In Buddhist text, this number is also called dvajagravati.[5]

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Decimal expansion

1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Approximations

List of prefixed numbers derived from trigintillion

Name Short scale Long scale untrigintillion 1096 10186 duotrigintillion 1099 10192 tretrigintillion 10102 10198 quattuortrigintillion 10105 10204 quintrigintillion 10108 10210 sextrigintillion 10111 10216 septentrigintillion 10114 10222 octotrigintillion 10117 10228 novemtrigintillion 10120 10234

Sources