22112121010220 has 24 divisors (see below), whose sum is σ = 46492711189008. Its totient is φ = 8833942296000.

The previous prime is 22112121010169. The next prime is 22112121010241. The reversal of 22112121010220 is 2201012121122.

It is a super-2 number, since 2×22112121010220² (a number of 27 digits) contains 22 as substring.

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, 681615131 + ... + 681647570.

It is an arithmetic number, because the mean of its divisors is an integer number (1937196299542).

Almost surely, 2^{22112121010220} is an apocalyptic number.

22112121010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112121010220 is an abundant number, since it is smaller than the sum of its proper divisors (24380590178788).

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

22112121010220 is a wasteful number, since it uses less digits than its factorization.

22112121010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363263521 (or 1363263519 counting only the distinct ones).

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

Adding to 22112121010220 its reverse (2201012121122), we get a palindrome (24313133131342).

The spelling of 22112121010220 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-one million, ten thousand, two hundred twenty".