225122521612 has 48 divisors (see below), whose sum is σ = 411994283008. Its totient is φ = 107531582400.

The previous prime is 225122521609. The next prime is 225122521639. The reversal of 225122521612 is 216125221522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3007237 + ... + 3081187.

Almost surely, 2^225122521612 is an apocalyptic number.

It is an amenable number.

225122521612 is a deficient number, since it is larger than the sum of its proper divisors (186871761396).

225122521612 is a wasteful number, since it uses less digits than its factorization.

225122521612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74366 (or 74364 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The spelling of 225122521612 in words is "two hundred twenty-five billion, one hundred twenty-two million, five hundred twenty-one thousand, six hundred twelve".