222142988 has 24 divisors (see below), whose sum is σ = 400868160. Its totient is φ = 107649360.

The previous prime is 222142967. The next prime is 222143017. The reversal of 222142988 is 889241222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17603 + ... + 27461.

It is an arithmetic number, because the mean of its divisors is an integer number (16702840).

Almost surely, 2^222142988 is an apocalyptic number.

It is an amenable number.

222142988 is a deficient number, since it is larger than the sum of its proper divisors (178725172).

222142988 is a wasteful number, since it uses less digits than its factorization.

222142988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10037 (or 10035 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 222142988 is about 14904.4620164567. The cubic root of 222142988 is about 605.6348666513.

The spelling of 222142988 in words is "two hundred twenty-two million, one hundred forty-two thousand, nine hundred eighty-eight".