12057576021 has 48 divisors (see below), whose sum is σ = 18080400000. Its totient is φ = 7737151104.

The previous prime is 12057575977. The next prime is 12057576049. The reversal of 12057576021 is 12067575021.

12057576021 is a `hidden beast` number, since 1 + 2 + 0 + 575 + 7 + 60 + 21 = 666.

It is not a de Polignac number, because 12057576021 - 2¹⁴ = 12057559637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057576071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24163230 + ... + 24163728.

It is an arithmetic number, because the mean of its divisors is an integer number (376675000).

Almost surely, 2^12057576021 is an apocalyptic number.

It is an amenable number.

12057576021 is a deficient number, since it is larger than the sum of its proper divisors (6022823979).

12057576021 is a wasteful number, since it uses less digits than its factorization.

12057576021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 12057576021 in words is "twelve billion, fifty-seven million, five hundred seventy-six thousand, twenty-one".