22122222112020 has 384 divisors, whose sum is σ = 69411531571200. Its totient is φ = 5231589285888.

The previous prime is 22122222111967. The next prime is 22122222112051. The reversal of 22122222112020 is 2021122222122.

It is a super-2 number, since 2×22122222112020² (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 127 ways as a sum of consecutive naturals, for example, 7212982527 + ... + 7212985593.

It is an arithmetic number, because the mean of its divisors is an integer number (180759196800).

Almost surely, 2^{22122222112020} is an apocalyptic number.

22122222112020 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 22122222112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34705765785600).

22122222112020 is an abundant number, since it is smaller than the sum of its proper divisors (47289309459180).

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

22122222112020 is a wasteful number, since it uses less digits than its factorization.

22122222112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007 (or 5005 counting only the distinct ones).

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

Adding to 22122222112020 its reverse (2021122222122), we get a palindrome (24143344334142).

The spelling of 22122222112020 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, twenty".