12002544522 has 40 divisors (see below), whose sum is σ = 27350452800. Its totient is φ = 3933034056.

The previous prime is 12002544479. The next prime is 12002544523. The reversal of 12002544522 is 22544520021.

12002544522 is a `hidden beast` number, since 1 + 200 + 2 + 5 + 4 + 452 + 2 = 666.

It is a super-2 number, since 2×12002544522² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12002544523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 618322 + ... + 637437.

It is an arithmetic number, because the mean of its divisors is an integer number (683761320).

Almost surely, 2^12002544522 is an apocalyptic number.

12002544522 is an abundant number, since it is smaller than the sum of its proper divisors (15347908278).

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

12002544522 is a wasteful number, since it uses less digits than its factorization.

12002544522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255832 (or 1255823 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The spelling of 12002544522 in words is "twelve billion, two million, five hundred forty-four thousand, five hundred twenty-two".