22020994989 has 96 divisors (see below), whose sum is σ = 39070080000. Its totient is φ = 12217534560.

The previous prime is 22020994979. The next prime is 22020995039. The reversal of 22020994989 is 98949902022.

It is not a de Polignac number, because 22020994989 - 2⁴ = 22020994973 is a prime.

It is a super-2 number, since 2×22020994989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020994939) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6291762 + ... + 6295260.

It is an arithmetic number, because the mean of its divisors is an integer number (406980000).

Almost surely, 2^22020994989 is an apocalyptic number.

It is an amenable number.

22020994989 is a deficient number, since it is larger than the sum of its proper divisors (17049085011).

22020994989 is a wasteful number, since it uses less digits than its factorization.

22020994989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3647 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 22020994989 in words is "twenty-two billion, twenty million, nine hundred ninety-four thousand, nine hundred eighty-nine".