222312028 has 24 divisors (see below), whose sum is σ = 403084080. Its totient is φ = 107157120.

The previous prime is 222312011. The next prime is 222312029. The reversal of 222312028 is 820213222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222312029) 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, 109543 + ... + 111553.

It is an arithmetic number, because the mean of its divisors is an integer number (16795170).

Almost surely, 2^222312028 is an apocalyptic number.

It is an amenable number.

222312028 is a deficient number, since it is larger than the sum of its proper divisors (180772052).

222312028 is a wasteful number, since it uses less digits than its factorization.

222312028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 222312028 is about 14910.1317230935. The cubic root of 222312028 is about 605.7884472525.

The spelling of 222312028 in words is "two hundred twenty-two million, three hundred twelve thousand, twenty-eight".