121120222100 has 36 divisors (see below), whose sum is σ = 262898798400. Its totient is φ = 48435569760.

The previous prime is 121120222081. The next prime is 121120222189. The reversal of 121120222100 is 1222021121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237371 + ... + 546429.

It is an arithmetic number, because the mean of its divisors is an integer number (7302744400).

Almost surely, 2^121120222100 is an apocalyptic number.

121120222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120222100 is an abundant number, since it is smaller than the sum of its proper divisors (141778576300).

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

121120222100 is a wasteful number, since it uses less digits than its factorization.

121120222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312992 (or 312985 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121120222100 its reverse (1222021121), we get a palindrome (122342243221).

The spelling of 121120222100 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred".