121101023100 has 72 divisors (see below), whose sum is σ = 350475068160. Its totient is φ = 32285362880.

The previous prime is 121101023077. The next prime is 121101023177. The reversal of 121101023100 is 1320101121.

121101023100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121101023100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1174219 + ... + 1273181.

It is an arithmetic number, because the mean of its divisors is an integer number (4867709280).

Almost surely, 2^121101023100 is an apocalyptic number.

121101023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101023100 is an abundant number, since it is smaller than the sum of its proper divisors (229374045060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121101023100 is a wasteful number, since it uses less digits than its factorization.

121101023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103059 (or 103052 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 121101023100 its reverse (1320101121), we get a palindrome (122421124221).

The spelling of 121101023100 in words is "one hundred twenty-one billion, one hundred one million, twenty-three thousand, one hundred".