222112812 has 24 divisors (see below), whose sum is σ = 545540800. Its totient is φ = 70140816.

The previous prime is 222112811. The next prime is 222112819. The reversal of 222112812 is 218211222.

222112812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222112811) 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, 486862 + ... + 487317.

Almost surely, 2^222112812 is an apocalyptic number.

It is an amenable number.

222112812 is an abundant number, since it is smaller than the sum of its proper divisors (323427988).

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

222112812 is a wasteful number, since it uses less digits than its factorization.

222112812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974205 (or 974203 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 222112812 is about 14903.4496677783. The cubic root of 222112812 is about 605.6074421750.

The spelling of 222112812 in words is "two hundred twenty-two million, one hundred twelve thousand, eight hundred twelve".