22022056205656 has 128 divisors (see below), whose sum is σ = 45757426176000. Its totient is φ = 9871969540608.

The previous prime is 22022056205579. The next prime is 22022056205671. The reversal of 22022056205656 is 65650265022022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 916466250 + ... + 916490278.

It is an arithmetic number, because the mean of its divisors is an integer number (357479892000).

Almost surely, 2^{22022056205656} is an apocalyptic number.

22022056205656 is a gapful number since it is divisible by the number (26) 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 22022056205656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22878713088000).

22022056205656 is an abundant number, since it is smaller than the sum of its proper divisors (23735369970344).

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

22022056205656 is a wasteful number, since it uses less digits than its factorization.

22022056205656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25233 (or 25229 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 22022056205656 in words is "twenty-two trillion, twenty-two billion, fifty-six million, two hundred five thousand, six hundred fifty-six".