222499968 has 32 divisors (see below), whose sum is σ = 591016560. Its totient is φ = 74166528.

The previous prime is 222499967. The next prime is 222499969. The reversal of 222499968 is 869994222.

It is an interprime number because it is at equal distance from previous prime (222499967) and next prime (222499969).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 222499968.

It is not an unprimeable number, because it can be changed into a prime (222499967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289330 + ... + 290097.

Almost surely, 2^222499968 is an apocalyptic number.

It is an amenable number.

222499968 is an abundant number, since it is smaller than the sum of its proper divisors (368516592).

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

222499968 is an equidigital number, since it uses as much as digits as its factorization.

222499968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579444 (or 579432 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 222499968 is about 14916.4328175338. The cubic root of 222499968 is about 605.9591080033.

The spelling of 222499968 in words is "two hundred twenty-two million, four hundred ninety-nine thousand, nine hundred sixty-eight".