22200021112222 has 4 divisors (see below), whose sum is σ = 33300031668336. Its totient is φ = 11100010556110.

The previous prime is 22200021112211. The next prime is 22200021112231. The reversal of 22200021112222 is 22221112000222.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22200021112222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5550005278054 + ... + 5550005278057.

It is an arithmetic number, because the mean of its divisors is an integer number (8325007917084).

Almost surely, 2^{22200021112222} is an apocalyptic number.

22200021112222 is a deficient number, since it is larger than the sum of its proper divisors (11100010556114).

22200021112222 is a wasteful number, since it uses less digits than its factorization.

22200021112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100010556113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22200021112222 its reverse (22221112000222), we get a palindrome (44421133112444).

The spelling of 22200021112222 in words is "twenty-two trillion, two hundred billion, twenty-one million, one hundred twelve thousand, two hundred twenty-two".