222201992 has 8 divisors (see below), whose sum is σ = 416628750. Its totient is φ = 111100992.

The previous prime is 222201989. The next prime is 222202033. The reversal of 222201992 is 299102222.

It can be written as a sum of positive squares in only one way, i.e., 208109476 + 14092516 = 14426^2 + 3754^2 .

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, 13887617 + ... + 13887632.

Almost surely, 2^222201992 is an apocalyptic number.

It is an amenable number.

222201992 is a deficient number, since it is larger than the sum of its proper divisors (194426758).

222201992 is a wasteful number, since it uses less digits than its factorization.

222201992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27775255 (or 27775251 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 222201992 is about 14906.4412922736. The cubic root of 222201992 is about 605.6884833429.

The spelling of 222201992 in words is "two hundred twenty-two million, two hundred one thousand, nine hundred ninety-two".