222018564 has 12 divisors (see below), whose sum is σ = 518043344. Its totient is φ = 74006184.

The previous prime is 222018557. The next prime is 222018583. The reversal of 222018564 is 465810222.

222018564 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 9250762 + ... + 9250785.

Almost surely, 2^222018564 is an apocalyptic number.

It is an amenable number.

222018564 is an abundant number, since it is smaller than the sum of its proper divisors (296024780).

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

222018564 is a wasteful number, since it uses less digits than its factorization.

222018564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501554 (or 18501552 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 222018564 is about 14900.2873797790. The cubic root of 222018564 is about 605.5217719477.

Adding to 222018564 its reverse (465810222), we get a palindrome (687828786).

The spelling of 222018564 in words is "two hundred twenty-two million, eighteen thousand, five hundred sixty-four".