222565212 has 48 divisors (see below), whose sum is σ = 592626720. Its totient is φ = 72182016.

The previous prime is 222565177. The next prime is 222565219. The reversal of 222565212 is 212565222.

222565212 is a `hidden beast` number, since 2 + 2 + 2 + 5 + 652 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222565219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23853 + ... + 31844.

It is an arithmetic number, because the mean of its divisors is an integer number (12346390).

Almost surely, 2^222565212 is an apocalyptic number.

It is an amenable number.

222565212 is an abundant number, since it is smaller than the sum of its proper divisors (370061508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222565212 is a wasteful number, since it uses less digits than its factorization.

222565212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55747 (or 55739 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 222565212 is about 14918.6196412403. The cubic root of 222565212 is about 606.0183309816.

The spelling of 222565212 in words is "two hundred twenty-two million, five hundred sixty-five thousand, two hundred twelve".