12188825125 has 16 divisors (see below), whose sum is σ = 15225303600. Its totient is φ = 9742310400.

The previous prime is 12188825123. The next prime is 12188825167. The reversal of 12188825125 is 52152888121.

It can be written as a sum of positive squares in 8 ways, for example, as 7979670241 + 4209154884 = 89329^2 + 64878^2 .

It is not a de Polignac number, because 12188825125 - 2¹ = 12188825123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12188825123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97941 + ... + 184309.

It is an arithmetic number, because the mean of its divisors is an integer number (951581475).

Almost surely, 2^12188825125 is an apocalyptic number.

It is an amenable number.

12188825125 is a deficient number, since it is larger than the sum of its proper divisors (3036478475).

12188825125 is an equidigital number, since it uses as much as digits as its factorization.

12188825125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87513 (or 87503 counting only the distinct ones).

The product of its digits is 102400, while the sum is 43.

The spelling of 12188825125 in words is "twelve billion, one hundred eighty-eight million, eight hundred twenty-five thousand, one hundred twenty-five".