22021323213331 has 16 divisors (see below), whose sum is σ = 24222651062400. Its totient is φ = 19892578197888.

The previous prime is 22021323213311. The next prime is 22021323213391. The reversal of 22021323213331 is 13331232312022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22021323213331 - 2²⁵ = 22021289658899 is a prime.

It is a super-2 number, since 2×22021323213331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021323213331.

It is not an unprimeable number, because it can be changed into a prime (22021323213301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218005 + ... + 7375513.

It is an arithmetic number, because the mean of its divisors is an integer number (1513915691400).

Almost surely, 2^{22021323213331} is an apocalyptic number.

22021323213331 is a deficient number, since it is larger than the sum of its proper divisors (2201327849069).

22021323213331 is a wasteful number, since it uses less digits than its factorization.

22021323213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166238.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 22021323213331 its reverse (13331232312022), we get a palindrome (35352555525353).

The spelling of 22021323213331 in words is "twenty-two trillion, twenty-one billion, three hundred twenty-three million, two hundred thirteen thousand, three hundred thirty-one".