222320012 has 6 divisors (see below), whose sum is σ = 389060028. Its totient is φ = 111160004.

The previous prime is 222320009. The next prime is 222320017. The reversal of 222320012 is 210023222.

It is not an unprimeable number, because it can be changed into a prime (222320017) 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 as a sum of consecutive naturals, namely, 27789998 + ... + 27790005.

It is an arithmetic number, because the mean of its divisors is an integer number (64843338).

Almost surely, 2^222320012 is an apocalyptic number.

It is an amenable number.

222320012 is a deficient number, since it is larger than the sum of its proper divisors (166740016).

222320012 is a wasteful number, since it uses less digits than its factorization.

222320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55580007 (or 55580005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222320012 is about 14910.3994580964. The cubic root of 222320012 is about 605.7956991574.

Adding to 222320012 its reverse (210023222), we get a palindrome (432343234).

The spelling of 222320012 in words is "two hundred twenty-two million, three hundred twenty thousand, twelve".