22112112221022 has 32 divisors (see below), whose sum is σ = 44469184241664. Its totient is φ = 7329878589600.

The previous prime is 22112112221009. The next prime is 22112112221131. The reversal of 22112112221022 is 22012221121122.

It is a self number, because there is not a number n which added to its sum of digits gives 22112112221022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138718747 + ... + 138878057.

It is an arithmetic number, because the mean of its divisors is an integer number (1389662007552).

Almost surely, 2^{22112112221022} is an apocalyptic number.

22112112221022 is an abundant number, since it is smaller than the sum of its proper divisors (22357072020642).

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

22112112221022 is a wasteful number, since it uses less digits than its factorization.

22112112221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287304.

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

Adding to 22112112221022 its reverse (22012221121122), we get a palindrome (44124333342144).

The spelling of 22112112221022 in words is "twenty-two trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand, twenty-two".