222820168 has 8 divisors (see below), whose sum is σ = 417787830. Its totient is φ = 111410080.

The previous prime is 222820153. The next prime is 222820181. The reversal of 222820168 is 861028222.

It can be written as a sum of positive squares in only one way, i.e., 118330884 + 104489284 = 10878^2 + 10222^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13926253 + ... + 13926268.

Almost surely, 2^222820168 is an apocalyptic number.

It is an amenable number.

222820168 is a deficient number, since it is larger than the sum of its proper divisors (194967662).

222820168 is a wasteful number, since it uses less digits than its factorization.

222820168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27852527 (or 27852523 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 222820168 is about 14927.1620879523. The cubic root of 222820168 is about 606.2496475288.

The spelling of 222820168 in words is "two hundred twenty-two million, eight hundred twenty thousand, one hundred sixty-eight".