222012725 has 48 divisors (see below), whose sum is σ = 311765760. Its totient is φ = 155443200.

The previous prime is 222012697. The next prime is 222012737. The reversal of 222012725 is 527210222.

It is a de Polignac number, because none of the positive numbers 2^k-222012725 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222012725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1150229 + ... + 1150421.

It is an arithmetic number, because the mean of its divisors is an integer number (6495120).

Almost surely, 2^222012725 is an apocalyptic number.

222012725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222012725 is a deficient number, since it is larger than the sum of its proper divisors (89753035).

222012725 is a wasteful number, since it uses less digits than its factorization.

222012725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 222012725 is about 14900.0914426724. The cubic root of 222012725 is about 605.5164635739.

Adding to 222012725 its reverse (527210222), we get a palindrome (749222947).

The spelling of 222012725 in words is "two hundred twenty-two million, twelve thousand, seven hundred twenty-five".