12021264504 has 96 divisors (see below), whose sum is σ = 32742418800. Its totient is φ = 3984422400.

The previous prime is 12021264491. The next prime is 12021264509. The reversal of 12021264504 is 40546212021.

12021264504 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 12 + 645 + 0 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021264509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16399722 + ... + 16400454.

Almost surely, 2^12021264504 is an apocalyptic number.

It is an amenable number.

12021264504 is an abundant number, since it is smaller than the sum of its proper divisors (20721154296).

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

12021264504 is a wasteful number, since it uses less digits than its factorization.

12021264504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12021264504 its reverse (40546212021), we get a palindrome (52567476525).

The spelling of 12021264504 in words is "twelve billion, twenty-one million, two hundred sixty-four thousand, five hundred four".