22200021982 has 32 divisors (see below), whose sum is σ = 35968750272. Its totient is φ = 10238828544.

The previous prime is 22200021979. The next prime is 22200022001. The reversal of 22200021982 is 28912000222.

It is a self number, because there is not a number n which added to its sum of digits gives 22200021982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307018 + ... + 372370.

It is an arithmetic number, because the mean of its divisors is an integer number (1124023446).

Almost surely, 2^22200021982 is an apocalyptic number.

22200021982 is a deficient number, since it is larger than the sum of its proper divisors (13768728290).

22200021982 is a wasteful number, since it uses less digits than its factorization.

22200021982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65572.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 22200021982 in words is "twenty-two billion, two hundred million, twenty-one thousand, nine hundred eighty-two".