12525512212 has 24 divisors (see below), whose sum is σ = 23362758720. Its totient is φ = 5855318400.

The previous prime is 12525512191. The next prime is 12525512213. The reversal of 12525512212 is 21221552521.

It is a super-2 number, since 2×12525512212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525512213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599662 + ... + 620197.

It is an arithmetic number, because the mean of its divisors is an integer number (973448280).

Almost surely, 2^12525512212 is an apocalyptic number.

It is an amenable number.

12525512212 is a deficient number, since it is larger than the sum of its proper divisors (10837246508).

12525512212 is a wasteful number, since it uses less digits than its factorization.

12525512212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220031 (or 1220029 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The spelling of 12525512212 in words is "twelve billion, five hundred twenty-five million, five hundred twelve thousand, two hundred twelve".