22022112020021 has 4 divisors (see below), whose sum is σ = 22022187372000. Its totient is φ = 22022036668044.

The previous prime is 22022112019997. The next prime is 22022112020059. The reversal of 22022112020021 is 12002021122022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22022112020021 - 2¹⁰ = 22022112018997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022112020621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37235891 + ... + 37822688.

It is an arithmetic number, because the mean of its divisors is an integer number (5505546843000).

Almost surely, 2^{22022112020021} is an apocalyptic number.

It is an amenable number.

22022112020021 is a deficient number, since it is larger than the sum of its proper divisors (75351979).

22022112020021 is an equidigital number, since it uses as much as digits as its factorization.

22022112020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75351978.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22022112020021 its reverse (12002021122022), we get a palindrome (34024133142043).

The spelling of 22022112020021 in words is "twenty-two trillion, twenty-two billion, one hundred twelve million, twenty thousand, twenty-one".