222564 has 24 divisors (see below), whose sum is σ = 550368. Its totient is φ = 69760.

The previous prime is 222557. The next prime is 222587. The reversal of 222564 is 465222.

222564 = T₉₇ + T₉₈ + ... + T₁₃₀.

222564 is nontrivially palindromic in base 11.

222564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222564.

It is an unprimeable number.

222564 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (22932).

2²²²⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

222564 is an abundant number, since it is smaller than the sum of its proper divisors (327804).

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

222564 is a wasteful number, since it uses less digits than its factorization.

222564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1113 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 222564 is about 471.7668915895. The cubic root of 222564 is about 60.6017230936.

Adding to 222564 its reverse (465222), we get a palindrome (687786).

The spelling of 222564 in words is "two hundred twenty-two thousand, five hundred sixty-four".