22111100120 has 32 divisors (see below), whose sum is σ = 49755286800. Its totient is φ = 8843495808.

The previous prime is 22111100119. The next prime is 22111100149. The reversal of 22111100120 is 2100111122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443411 + ... + 490749.

Almost surely, 2^22111100120 is an apocalyptic number.

22111100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111100120 is an abundant number, since it is smaller than the sum of its proper divisors (27644186680).

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

22111100120 is a wasteful number, since it uses less digits than its factorization.

22111100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59027 (or 59023 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22111100120 its reverse (2100111122), we get a palindrome (24211211242).

The spelling of 22111100120 in words is "twenty-two billion, one hundred eleven million, one hundred thousand, one hundred twenty".