12207931180225 has 27 divisors (see below), whose sum is σ = 16639369448611. Its totient is φ = 8878355644400.

The previous prime is 12207931180217. The next prime is 12207931180273. The reversal of 12207931180225 is 52208113970221.

The square root of 12207931180225 is 3493985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4394855224881 + 7813075955344 = 2096391^2 + 2795188^2 .

It is not a de Polignac number, because 12207931180225 - 2³ = 12207931180217 is a prime.

It is a super-2 number, since 2×12207931180225² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 192137412 + ... + 192200938.

Almost surely, 2^{12207931180225} is an apocalyptic number.

12207931180225 is the 3493985-th square number.

12207931180225 is the 1746993-rd centered octagonal number.

It is an amenable number.

12207931180225 is a deficient number, since it is larger than the sum of its proper divisors (4431438268386).

12207931180225 is an frugal number, since it uses more digits than its factorization.

12207931180225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127086 (or 63543 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 12207931180225 in words is "twelve trillion, two hundred seven billion, nine hundred thirty-one million, one hundred eighty thousand, two hundred twenty-five".