222330312 has 32 divisors (see below), whose sum is σ = 617584800. Its totient is φ = 74110032.

The previous prime is 222330307. The next prime is 222330319. The reversal of 222330312 is 213033222.

It is a happy number.

222330312 is a `hidden beast` number, since 2 + 22 + 330 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222330319) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 514438 + ... + 514869.

It is an arithmetic number, because the mean of its divisors is an integer number (19299525).

Almost surely, 2^222330312 is an apocalyptic number.

It is an amenable number.

222330312 is an abundant number, since it is smaller than the sum of its proper divisors (395254488).

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

222330312 is a wasteful number, since it uses less digits than its factorization.

222330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029322 (or 1029312 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 222330312 is about 14910.7448506102. The cubic root of 222330312 is about 605.8050544396.

Adding to 222330312 its reverse (213033222), we get a palindrome (435363534).

The spelling of 222330312 in words is "two hundred twenty-two million, three hundred thirty thousand, three hundred twelve".