57122810121 has 16 divisors (see below), whose sum is σ = 84239322944. Its totient is φ = 34202430144.

The previous prime is 57122810081. The next prime is 57122810123. The reversal of 57122810121 is 12101822175.

It is not a de Polignac number, because 57122810121 - 2¹³ = 57122801929 is a prime.

It is a super-2 number, since 2×57122810121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57122810123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19791631 + ... + 19794516.

It is an arithmetic number, because the mean of its divisors is an integer number (5264957684).

Almost surely, 2^57122810121 is an apocalyptic number.

It is an amenable number.

57122810121 is a deficient number, since it is larger than the sum of its proper divisors (27116512823).

57122810121 is a wasteful number, since it uses less digits than its factorization.

57122810121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39586200.

The product of its (nonzero) digits is 2240, while the sum is 30.

The spelling of 57122810121 in words is "fifty-seven billion, one hundred twenty-two million, eight hundred ten thousand, one hundred twenty-one".