222688916 has 24 divisors (see below), whose sum is σ = 422231040. Its totient is φ = 102356352.

The previous prime is 222688789. The next prime is 222688919. The reversal of 222688916 is 619886222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222688919) 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, 35156 + ... + 41003.

It is an arithmetic number, because the mean of its divisors is an integer number (17592960).

Almost surely, 2^222688916 is an apocalyptic number.

It is an amenable number.

222688916 is a deficient number, since it is larger than the sum of its proper divisors (199542124).

222688916 is a wasteful number, since it uses less digits than its factorization.

222688916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76223 (or 76221 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 222688916 is about 14922.7650252894. The cubic root of 222688916 is about 606.1305872294.

The spelling of 222688916 in words is "two hundred twenty-two million, six hundred eighty-eight thousand, nine hundred sixteen".