12152772225 has 60 divisors (see below), whose sum is σ = 24557646960. Its totient is φ = 5892242400.

The previous prime is 12152772221. The next prime is 12152772251. The reversal of 12152772225 is 52227725121.

12152772225 is a `hidden beast` number, since 121 + 527 + 7 + 2 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 12152772225 - 2² = 12152772221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12152772225.

It is not an unprimeable number, because it can be changed into a prime (12152772221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 250515 + ... + 295064.

It is an arithmetic number, because the mean of its divisors is an integer number (409294116).

Almost surely, 2^12152772225 is an apocalyptic number.

12152772225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12152772225 is an abundant number, since it is smaller than the sum of its proper divisors (12404874735).

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

12152772225 is a wasteful number, since it uses less digits than its factorization.

12152772225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545612 (or 545598 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The spelling of 12152772225 in words is "twelve billion, one hundred fifty-two million, seven hundred seventy-two thousand, two hundred twenty-five".