22022224130021 has 4 divisors (see below), whose sum is σ = 22182970291692. Its totient is φ = 21861477968352.

The previous prime is 22022224129999. The next prime is 22022224130051. The reversal of 22022224130021 is 12003142222022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9142846353796 + 12879377776225 = 3023714^2 + 3588785^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022224130021 - 2²⁶ = 22022157021157 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 (22022224130051) 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, 80373080630 + ... + 80373080903.

It is an arithmetic number, because the mean of its divisors is an integer number (5545742572923).

Almost surely, 2^{22022224130021} is an apocalyptic number.

It is an amenable number.

22022224130021 is a deficient number, since it is larger than the sum of its proper divisors (160746161671).

22022224130021 is a wasteful number, since it uses less digits than its factorization.

22022224130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160746161670.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22022224130021 its reverse (12003142222022), we get a palindrome (34025366352043).

The spelling of 22022224130021 in words is "twenty-two trillion, twenty-two billion, two hundred twenty-four million, one hundred thirty thousand, twenty-one".