22122220112220 has 96 divisors (see below), whose sum is σ = 64017672800256. Its totient is φ = 5702056416000.

The previous prime is 22122220112131. The next prime is 22122220112233. The reversal of 22122220112220 is 2221102222122.

It is a super-2 number, since 2×22122220112220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5652631 + ... + 8729070.

It is an arithmetic number, because the mean of its divisors is an integer number (666850758336).

Almost surely, 2^{22122220112220} is an apocalyptic number.

22122220112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122220112220 is an abundant number, since it is smaller than the sum of its proper divisors (41895452688036).

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

22122220112220 is a wasteful number, since it uses less digits than its factorization.

22122220112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14382571 (or 14382569 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22122220112220 its reverse (2221102222122), we get a palindrome (24343322334342).

The spelling of 22122220112220 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty".