121502904912 has 60 divisors (see below), whose sum is σ = 340116382944. Its totient is φ = 40491796800.

The previous prime is 121502904911. The next prime is 121502904937. The reversal of 121502904912 is 219409205121.

121502904912 is a `hidden beast` number, since 1 + 21 + 502 + 90 + 49 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121502904911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558037 + ... + 744587.

Almost surely, 2^121502904912 is an apocalyptic number.

121502904912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121502904912 is an abundant number, since it is smaller than the sum of its proper divisors (218613478032).

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

121502904912 is a wasteful number, since it uses less digits than its factorization.

121502904912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191088 (or 191079 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 121502904912 in words is "one hundred twenty-one billion, five hundred two million, nine hundred four thousand, nine hundred twelve".