121652156224 has 28 divisors (see below), whose sum is σ = 249190711168. Its totient is φ = 58863945600.

The previous prime is 121652156137. The next prime is 121652156321. The reversal of 121652156224 is 422651256121.

It is a super-2 number, since 2×121652156224² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30656322 + ... + 30660289.

It is an arithmetic number, because the mean of its divisors is an integer number (8899668256).

Almost surely, 2^121652156224 is an apocalyptic number.

It is an amenable number.

121652156224 is an abundant number, since it is smaller than the sum of its proper divisors (127538554944).

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

121652156224 is an equidigital number, since it uses as much as digits as its factorization.

121652156224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61316654 (or 61316644 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The spelling of 121652156224 in words is "one hundred twenty-one billion, six hundred fifty-two million, one hundred fifty-six thousand, two hundred twenty-four".