222217564 has 12 divisors (see below), whose sum is σ = 390595464. Its totient is φ = 110618864.

The previous prime is 222217553. The next prime is 222217577. The reversal of 222217564 is 465712222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121459 + ... + 123274.

It is an arithmetic number, because the mean of its divisors is an integer number (32549622).

Almost surely, 2^222217564 is an apocalyptic number.

It is an amenable number.

222217564 is a deficient number, since it is larger than the sum of its proper divisors (168377900).

222217564 is a wasteful number, since it uses less digits than its factorization.

222217564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244964 (or 244962 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 222217564 is about 14906.9636076567. The cubic root of 222217564 is about 605.7026319720.

Adding to 222217564 its reverse (465712222), we get a palindrome (687929786).

The spelling of 222217564 in words is "two hundred twenty-two million, two hundred seventeen thousand, five hundred sixty-four".