12162431225 has 24 divisors (see below), whose sum is σ = 17371650048. Its totient is φ = 8274268800.

The previous prime is 12162431219. The next prime is 12162431269. The reversal of 12162431225 is 52213426121.

It is not a de Polignac number, because 12162431225 - 2⁶ = 12162431161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251396 + ... + 295845.

It is an arithmetic number, because the mean of its divisors is an integer number (723818752).

Almost surely, 2^12162431225 is an apocalyptic number.

It is an amenable number.

12162431225 is a deficient number, since it is larger than the sum of its proper divisors (5209218823).

12162431225 is a wasteful number, since it uses less digits than its factorization.

12162431225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547385 (or 547380 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 12162431225 its reverse (52213426121), we get a palindrome (64375857346).

The spelling of 12162431225 in words is "twelve billion, one hundred sixty-two million, four hundred thirty-one thousand, two hundred twenty-five".