22021120110220 has 192 divisors, whose sum is σ = 58774438195200. Its totient is φ = 6731162726400.

The previous prime is 22021120110181. The next prime is 22021120110287. The reversal of 22021120110220 is 2201102112022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22021120110194 and 22021120110203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31309981 + ... + 32005579.

It is an arithmetic number, because the mean of its divisors is an integer number (306116865600).

Almost surely, 2^{22021120110220} is an apocalyptic number.

22021120110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021120110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29387219097600).

22021120110220 is an abundant number, since it is smaller than the sum of its proper divisors (36753318084980).

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

22021120110220 is a wasteful number, since it uses less digits than its factorization.

22021120110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696024 (or 696022 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021120110220 its reverse (2201102112022), we get a palindrome (24222222222242).

The spelling of 22021120110220 in words is "twenty-two trillion, twenty-one billion, one hundred twenty million, one hundred ten thousand, two hundred twenty".