22021199980 has 48 divisors (see below), whose sum is σ = 49873247424. Its totient is φ = 8119238400.

The previous prime is 22021199923. The next prime is 22021200011. The reversal of 22021199980 is 8999112022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121849 + ... + 242671.

It is an arithmetic number, because the mean of its divisors is an integer number (1039025988).

Almost surely, 2^22021199980 is an apocalyptic number.

22021199980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021199980 is an abundant number, since it is smaller than the sum of its proper divisors (27852047444).

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

22021199980 is a wasteful number, since it uses less digits than its factorization.

22021199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121546 (or 121544 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 22021199980 in words is "twenty-two billion, twenty-one million, one hundred ninety-nine thousand, nine hundred eighty".