222111202012 has 48 divisors (see below), whose sum is σ = 449893547712. Its totient is φ = 93980620800.

The previous prime is 222111201979. The next prime is 222111202021. The reversal of 222111202012 is 210202111222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887038 + ... + 1109530.

It is an arithmetic number, because the mean of its divisors is an integer number (9372782244).

Almost surely, 2^222111202012 is an apocalyptic number.

It is an amenable number.

222111202012 is an abundant number, since it is smaller than the sum of its proper divisors (227782345700).

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

222111202012 is a wasteful number, since it uses less digits than its factorization.

222111202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222958 (or 222956 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111202012 its reverse (210202111222), we get a palindrome (432313313234).

The spelling of 222111202012 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred two thousand, twelve".