12125533225 has 12 divisors (see below), whose sum is σ = 16192250956. Its totient is φ = 8954239680.

The previous prime is 12125533219. The next prime is 12125533241. The reversal of 12125533225 is 52233552121.

It can be written as a sum of positive squares in 6 ways, for example, as 4637746201 + 7487787024 = 68101^2 + 86532^2 .

It is not a de Polignac number, because 12125533225 - 2⁵ = 12125533193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18654342 + ... + 18654991.

Almost surely, 2^12125533225 is an apocalyptic number.

It is an amenable number.

12125533225 is a deficient number, since it is larger than the sum of its proper divisors (4066717731).

12125533225 is a wasteful number, since it uses less digits than its factorization.

12125533225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37309356 (or 37309351 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The spelling of 12125533225 in words is "twelve billion, one hundred twenty-five million, five hundred thirty-three thousand, two hundred twenty-five".