222551042 has 12 divisors (see below), whose sum is σ = 388329030. Its totient is φ = 95378976.

The previous prime is 222551039. The next prime is 222551051. The reversal of 222551042 is 240155222.

It can be written as a sum of positive squares in only one way, i.e., 205320241 + 17230801 = 14329^2 + 4151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222550999 and 222551017.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1135367 + ... + 1135562.

Almost surely, 2^222551042 is an apocalyptic number.

222551042 is a deficient number, since it is larger than the sum of its proper divisors (165777988).

222551042 is a wasteful number, since it uses less digits than its factorization.

222551042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270945 (or 2270938 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 222551042 is about 14918.1447237919. The cubic root of 222551042 is about 606.0054696395.

The spelling of 222551042 in words is "two hundred twenty-two million, five hundred fifty-one thousand, forty-two".