121561025074 has 16 divisors (see below), whose sum is σ = 182721389760. Its totient is φ = 60653985840.

The previous prime is 121561025021. The next prime is 121561025093. The reversal of 121561025074 is 470520165121.

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, 2846419 + ... + 2888809.

It is an arithmetic number, because the mean of its divisors is an integer number (11420086860).

Almost surely, 2^121561025074 is an apocalyptic number.

121561025074 is a deficient number, since it is larger than the sum of its proper divisors (61160364686).

121561025074 is a wasteful number, since it uses less digits than its factorization.

121561025074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45345.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 121561025074 in words is "one hundred twenty-one billion, five hundred sixty-one million, twenty-five thousand, seventy-four".