22221020001 has 32 divisors (see below), whose sum is σ = 31512222720. Its totient is φ = 13903848000.

The previous prime is 22221019993. The next prime is 22221020027. The reversal of 22221020001 is 10002012222.

It is not a de Polignac number, because 22221020001 - 2³ = 22221019993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221020051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775276 + ... + 803426.

It is an arithmetic number, because the mean of its divisors is an integer number (984756960).

Almost surely, 2^22221020001 is an apocalyptic number.

It is an amenable number.

22221020001 is a deficient number, since it is larger than the sum of its proper divisors (9291202719).

22221020001 is a wasteful number, since it uses less digits than its factorization.

22221020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28437.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22221020001 its reverse (10002012222), we get a palindrome (32223032223).

The spelling of 22221020001 in words is "twenty-two billion, two hundred twenty-one million, twenty thousand, one".