22200021120 has 64 divisors (see below), whose sum is σ = 70762573440. Its totient is φ = 5920005120.

The previous prime is 22200021083. The next prime is 22200021121. The reversal of 22200021120 is 2112000222.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22200021096 and 22200021105.

It is not an unprimeable number, because it can be changed into a prime (22200021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5779336 + ... + 5783175.

It is an arithmetic number, because the mean of its divisors is an integer number (1105665210).

Almost surely, 2^22200021120 is an apocalyptic number.

22200021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200021120 is an abundant number, since it is smaller than the sum of its proper divisors (48562552320).

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

22200021120 is a wasteful number, since it uses less digits than its factorization.

22200021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562533 (or 11562521 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22200021120 its reverse (2112000222), we get a palindrome (24312021342).

The spelling of 22200021120 in words is "twenty-two billion, two hundred million, twenty-one thousand, one hundred twenty".