222711864 has 16 divisors (see below), whose sum is σ = 556779720. Its totient is φ = 74237280.

The previous prime is 222711859. The next prime is 222711869. The reversal of 222711864 is 468117222.

222711864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222711859) and next prime (222711869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222711869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4639807 + ... + 4639854.

Almost surely, 2^222711864 is an apocalyptic number.

222711864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222711864 is an abundant number, since it is smaller than the sum of its proper divisors (334067856).

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

222711864 is a wasteful number, since it uses less digits than its factorization.

222711864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279670 (or 9279666 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 222711864 is about 14923.5338978407. The cubic root of 222711864 is about 606.1514070158.

The spelling of 222711864 in words is "two hundred twenty-two million, seven hundred eleven thousand, eight hundred sixty-four".