12021132524 has 12 divisors (see below), whose sum is σ = 21047019000. Its totient is φ = 6007698528.

The previous prime is 12021132521. The next prime is 12021132547. The reversal of 12021132524 is 42523112021.

It is a super-2 number, since 2×12021132524² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12021132524.

It is not an unprimeable number, because it can be changed into a prime (12021132521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707489 + ... + 724280.

It is an arithmetic number, because the mean of its divisors is an integer number (1753918250).

Almost surely, 2^12021132524 is an apocalyptic number.

It is an amenable number.

12021132524 is a deficient number, since it is larger than the sum of its proper divisors (9025886476).

12021132524 is a wasteful number, since it uses less digits than its factorization.

12021132524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433872 (or 1433870 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12021132524 its reverse (42523112021), we get a palindrome (54544244545).

The spelling of 12021132524 in words is "twelve billion, twenty-one million, one hundred thirty-two thousand, five hundred twenty-four".