22021921984 has 14 divisors (see below), whose sum is σ = 43699751564. Its totient is φ = 11010960960.

The previous prime is 22021921973. The next prime is 22021922023. The reversal of 22021921984 is 48912912022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172046202 + ... + 172046329.

It is an arithmetic number, because the mean of its divisors is an integer number (3121410826).

Almost surely, 2^22021921984 is an apocalyptic number.

It is an amenable number.

22021921984 is a deficient number, since it is larger than the sum of its proper divisors (21677829580).

22021921984 is an equidigital number, since it uses as much as digits as its factorization.

22021921984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344092543 (or 344092533 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 22021921984 in words is "twenty-two billion, twenty-one million, nine hundred twenty-one thousand, nine hundred eighty-four".