222322312 has 8 divisors (see below), whose sum is σ = 416854350. Its totient is φ = 111161152.

The previous prime is 222322271. The next prime is 222322337. The reversal of 222322312 is 213223222.

It can be written as a sum of positive squares in only one way, i.e., 221592996 + 729316 = 14886^2 + 854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 222322312.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13895137 + ... + 13895152.

Almost surely, 2^222322312 is an apocalyptic number.

It is an amenable number.

222322312 is a deficient number, since it is larger than the sum of its proper divisors (194532038).

222322312 is a wasteful number, since it uses less digits than its factorization.

222322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27790295 (or 27790291 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 222322312 is about 14910.4765852739. The cubic root of 222322312 is about 605.7977882261.

Adding to 222322312 its reverse (213223222), we get a palindrome (435545534).

The spelling of 222322312 in words is "two hundred twenty-two million, three hundred twenty-two thousand, three hundred twelve".