22111112221122 has 64 divisors (see below), whose sum is σ = 46851781826304. Its totient is φ = 6932635699200.

The previous prime is 22111112221087. The next prime is 22111112221171. The reversal of 22111112221122 is 22112221111122.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1812825928 + ... + 1812838124.

It is an arithmetic number, because the mean of its divisors is an integer number (732059091036).

Almost surely, 2^{22111112221122} is an apocalyptic number.

22111112221122 is an abundant number, since it is smaller than the sum of its proper divisors (24740669605182).

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

22111112221122 is a wasteful number, since it uses less digits than its factorization.

22111112221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21483.

The product of its digits is 128, while the sum is 21.

Adding to 22111112221122 its reverse (22112221111122), we get a palindrome (44223333332244).

Subtracting 22111112221122 from its reverse (22112221111122), we obtain a square (1108890000 = 33300²).

The spelling of 22111112221122 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".