22122200221000 has 96 divisors (see below), whose sum is σ = 56899761904440. Its totient is φ = 8044436400000.

The previous prime is 22122200220943. The next prime is 22122200221031. The reversal of 22122200221000 is 12200222122.

It can be written as a sum of positive squares in 4 ways, for example, as 1839012634404 + 20283187586596 = 1356102^2 + 4503686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91293051 + ... + 91535050.

Almost surely, 2^{22122200221000} is an apocalyptic number.

22122200221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122200221000 is an abundant number, since it is smaller than the sum of its proper divisors (34777561683440).

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

22122200221000 is a wasteful number, since it uses less digits than its factorization.

22122200221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182828144 (or 182828119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22122200221000 its reverse (12200222122), we get a palindrome (22134400443122).

The spelling of 22122200221000 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred million, two hundred twenty-one thousand".