22011122210120 has 32 divisors (see below), whose sum is σ = 49536615580920. Its totient is φ = 8802388331520.

The previous prime is 22011122210113. The next prime is 22011122210123. The reversal of 22011122210120 is 2101222111022.

It can be written as a sum of positive squares in 4 ways, for example, as 10853611648324 + 11157510561796 = 3294482^2 + 3340286^2 .

It is not an unprimeable number, because it can be changed into a prime (22011122210123) 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, 64219211 + ... + 64561050.

Almost surely, 2^{22011122210120} is an apocalyptic number.

22011122210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011122210120 is an abundant number, since it is smaller than the sum of its proper divisors (27525493370800).

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

22011122210120 is a wasteful number, since it uses less digits than its factorization.

22011122210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128784545 (or 128784541 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22011122210120 its reverse (2101222111022), we get a palindrome (24112344321142).

The spelling of 22011122210120 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty".