22055228090850 has 96 divisors (see below), whose sum is σ = 55065489583104. Its totient is φ = 5841878817600.

The previous prime is 22055228090839. The next prime is 22055228090891. The reversal of 22055228090850 is 5809082255022.

It is a super-2 number, since 2×22055228090850² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22055228090850.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15227259 + ... + 16612641.

It is an arithmetic number, because the mean of its divisors is an integer number (573598849824).

Almost surely, 2^{22055228090850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22055228090850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27532744791552).

22055228090850 is an abundant number, since it is smaller than the sum of its proper divisors (33010261492254).

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

22055228090850 is a wasteful number, since it uses less digits than its factorization.

22055228090850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386112 (or 1386107 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 22055228090850 in words is "twenty-two trillion, fifty-five billion, two hundred twenty-eight million, ninety thousand, eight hundred fifty".