222320322012 has 24 divisors (see below), whose sum is σ = 518773021312. Its totient is φ = 74103116400.

The previous prime is 222320321981. The next prime is 222320322013. The reversal of 222320322012 is 210223023222.

It is a self number, because there is not a number n which added to its sum of digits gives 222320322012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320322013) 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, 198064 + ... + 695607.

Almost surely, 2^222320322012 is an apocalyptic number.

It is an amenable number.

222320322012 is an abundant number, since it is smaller than the sum of its proper divisors (296452699300).

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

222320322012 is a wasteful number, since it uses less digits than its factorization.

222320322012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914409 (or 914407 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 222320322012 its reverse (210223023222), we get a palindrome (432543345234).

The spelling of 222320322012 in words is "two hundred twenty-two billion, three hundred twenty million, three hundred twenty-two thousand, twelve".