12012525112 has 32 divisors (see below), whose sum is σ = 25794040320. Its totient is φ = 5137642080.

The previous prime is 12012525103. The next prime is 12012525163. The reversal of 12012525112 is 21152521021.

It is a happy number.

It is a super-2 number, since 2×12012525112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192964 + ... + 247507.

It is an arithmetic number, because the mean of its divisors is an integer number (806063760).

Almost surely, 2^12012525112 is an apocalyptic number.

It is an amenable number.

12012525112 is an abundant number, since it is smaller than the sum of its proper divisors (13781515208).

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

12012525112 is a wasteful number, since it uses less digits than its factorization.

12012525112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440971 (or 440967 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 12012525112 in words is "twelve billion, twelve million, five hundred twenty-five thousand, one hundred twelve".