22221001100120 has 32 divisors (see below), whose sum is σ = 49997389028400. Its totient is φ = 8888376163968.

The previous prime is 22221001100119. The next prime is 22221001100159. The reversal of 22221001100120 is 2100110012222.

It is a junction number, because it is equal to n+sod(n) for n = 22221001100095 and 22221001100104.

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, 24239471 + ... + 25139489.

Almost surely, 2^{22221001100120} is an apocalyptic number.

22221001100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221001100120 is an abundant number, since it is smaller than the sum of its proper divisors (27776387928280).

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

22221001100120 is a wasteful number, since it uses less digits than its factorization.

22221001100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517267 (or 1517263 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22221001100120 its reverse (2100110012222), we get a palindrome (24321111112342).

The spelling of 22221001100120 in words is "twenty-two trillion, two hundred twenty-one billion, one million, one hundred thousand, one hundred twenty".