222911652 has 12 divisors (see below), whose sum is σ = 520127216. Its totient is φ = 74303880.

The previous prime is 222911639. The next prime is 222911677. The reversal of 222911652 is 256119222.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 9287974 + ... + 9287997.

Almost surely, 2^222911652 is an apocalyptic number.

It is an amenable number.

222911652 is an abundant number, since it is smaller than the sum of its proper divisors (297215564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222911652 is a wasteful number, since it uses less digits than its factorization.

222911652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18575978 (or 18575976 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 222911652 is about 14930.2261201899. The cubic root of 222911652 is about 606.3326061385.

The spelling of 222911652 in words is "two hundred twenty-two million, nine hundred eleven thousand, six hundred fifty-two".