22121101120 has 112 divisors (see below), whose sum is σ = 55542484800. Its totient is φ = 8368496640.

The previous prime is 22121101111. The next prime is 22121101147. The reversal of 22121101120 is 2110112122.

It is a super-2 number, since 2×22121101120² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22121101120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4003960 + ... + 4009480.

Almost surely, 2^22121101120 is an apocalyptic number.

22121101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22121101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27771242400).

22121101120 is an abundant number, since it is smaller than the sum of its proper divisors (33421383680).

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

22121101120 is a wasteful number, since it uses less digits than its factorization.

22121101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216 (or 6206 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22121101120 its reverse (2110112122), we get a palindrome (24231213242).

The spelling of 22121101120 in words is "twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty".