121450955192 has 32 divisors (see below), whose sum is σ = 262684321920. Its totient is φ = 51563954400.

The previous prime is 121450955189. The next prime is 121450955201. The reversal of 121450955192 is 291559054121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10128434 + ... + 10140417.

It is an arithmetic number, because the mean of its divisors is an integer number (8208885060).

Almost surely, 2^121450955192 is an apocalyptic number.

It is an amenable number.

121450955192 is an abundant number, since it is smaller than the sum of its proper divisors (141233366728).

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

121450955192 is a wasteful number, since it uses less digits than its factorization.

121450955192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20268971 (or 20268967 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 121450955192 in words is "one hundred twenty-one billion, four hundred fifty million, nine hundred fifty-five thousand, one hundred ninety-two".