22112221102120 has 64 divisors (see below), whose sum is σ = 52681350531600. Its totient is φ = 8324247613440.

The previous prime is 22112221102087. The next prime is 22112221102211. The reversal of 22112221102120 is 2120112221122.

It can be written as a sum of positive squares in 8 ways, for example, as 9371790350244 + 12740430751876 = 3061338^2 + 3569374^2 .

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, 15629086 + ... + 16985074.

Almost surely, 2^{22112221102120} is an apocalyptic number.

22112221102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112221102120 is an abundant number, since it is smaller than the sum of its proper divisors (30569129429480).

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

22112221102120 is a wasteful number, since it uses less digits than its factorization.

22112221102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379998 (or 1379994 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22112221102120 its reverse (2120112221122), we get a palindrome (24232333323242).

The spelling of 22112221102120 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty".