222112200021 has 32 divisors (see below), whose sum is σ = 312922689408. Its totient is φ = 139977953280.

The previous prime is 222112200017. The next prime is 222112200041. The reversal of 222112200021 is 120002211222.

It is not a de Polignac number, because 222112200021 - 2² = 222112200017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338341 + ... + 747461.

It is an arithmetic number, because the mean of its divisors is an integer number (9778834044).

Almost surely, 2^222112200021 is an apocalyptic number.

It is an amenable number.

222112200021 is a deficient number, since it is larger than the sum of its proper divisors (90810489387).

222112200021 is a wasteful number, since it uses less digits than its factorization.

222112200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409301.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222112200021 its reverse (120002211222), we get a palindrome (342114411243).

The spelling of 222112200021 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred thousand, twenty-one".