222112221999 has 32 divisors (see below), whose sum is σ = 306419742720. Its totient is φ = 143003347200.

The previous prime is 222112221959. The next prime is 222112222009. The reversal of 222112221999 is 999122211222.

It is not a de Polignac number, because 222112221999 - 2⁷ = 222112221871 is a prime.

It is a super-2 number, since 2×222112221999² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222112221999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112221959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8237059 + ... + 8263979.

It is an arithmetic number, because the mean of its divisors is an integer number (9575616960).

Almost surely, 2^222112221999 is an apocalyptic number.

222112221999 is a deficient number, since it is larger than the sum of its proper divisors (84307520721).

222112221999 is a wasteful number, since it uses less digits than its factorization.

222112221999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27511.

The product of its digits is 46656, while the sum is 42.

The spelling of 222112221999 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, nine hundred ninety-nine".