20022209984 has 56 divisors (see below), whose sum is σ = 45982371840. Its totient is φ = 8472312576.

The previous prime is 20022209983. The next prime is 20022209993. The reversal of 20022209984 is 48990222002.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022209981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247472 + ... + 318255.

Almost surely, 2^20022209984 is an apocalyptic number.

It is an amenable number.

20022209984 is an abundant number, since it is smaller than the sum of its proper divisors (25960161856).

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

20022209984 is an equidigital number, since it uses as much as digits as its factorization.

20022209984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565825 (or 565815 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 20022209984 in words is "twenty billion, twenty-two million, two hundred nine thousand, nine hundred eighty-four".