121885375692 has 24 divisors (see below), whose sum is σ = 285872786416. Its totient is φ = 40417947648.

The previous prime is 121885375679. The next prime is 121885375747. The reversal of 121885375692 is 296573588121.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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, 26311453 + ... + 26316084.

Almost surely, 2^121885375692 is an apocalyptic number.

121885375692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121885375692 is an abundant number, since it is smaller than the sum of its proper divisors (163987410724).

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

121885375692 is a wasteful number, since it uses less digits than its factorization.

121885375692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52627737 (or 52627735 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 57.

The spelling of 121885375692 in words is "one hundred twenty-one billion, eight hundred eighty-five million, three hundred seventy-five thousand, six hundred ninety-two".