222717166 has 16 divisors (see below), whose sum is σ = 391114080. Its totient is φ = 93121920.

The previous prime is 222717163. The next prime is 222717197. The reversal of 222717166 is 661717222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222717163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193431 + ... + 194578.

It is an arithmetic number, because the mean of its divisors is an integer number (24444630).

Almost surely, 2^222717166 is an apocalyptic number.

222717166 is a deficient number, since it is larger than the sum of its proper divisors (168396914).

222717166 is a wasteful number, since it uses less digits than its factorization.

222717166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388059.

The product of its digits is 14112, while the sum is 34.

The square root of 222717166 is about 14923.7115356737. The cubic root of 222717166 is about 606.1562171012.

The spelling of 222717166 in words is "two hundred twenty-two million, seven hundred seventeen thousand, one hundred sixty-six".