12115524224 has 32 divisors (see below), whose sum is σ = 24262813440. Its totient is φ = 6026033920.

The previous prime is 12115524221. The next prime is 12115524259. The reversal of 12115524224 is 42242551121.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (12115524221) 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, 223334 + ... + 272229.

It is an arithmetic number, because the mean of its divisors is an integer number (758212920).

Almost surely, 2^12115524224 is an apocalyptic number.

It is an amenable number.

12115524224 is an abundant number, since it is smaller than the sum of its proper divisors (12147289216).

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

12115524224 is an equidigital number, since it uses as much as digits as its factorization.

12115524224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495768 (or 495756 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The spelling of 12115524224 in words is "twelve billion, one hundred fifteen million, five hundred twenty-four thousand, two hundred twenty-four".