22222221111120 has 40 divisors (see below), whose sum is σ = 68888885445216. Its totient is φ = 5925925629568.

The previous prime is 22222221111049. The next prime is 22222221111121. The reversal of 22222221111120 is 2111112222222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×22222221111120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222221111121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46296293742 + ... + 46296294221.

Almost surely, 2^{22222221111120} is an apocalyptic number.

22222221111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222221111120 is an abundant number, since it is smaller than the sum of its proper divisors (46666664334096).

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

22222221111120 is a wasteful number, since it uses less digits than its factorization.

22222221111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92592587979 (or 92592587973 counting only the distinct ones).

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

Adding to 22222221111120 its reverse (2111112222222), we get a palindrome (24333333333342).

The spelling of 22222221111120 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty".