20223332321021 has 2 divisors, whose sum is σ = 20223332321022. Its totient is φ = 20223332321020.

The previous prime is 20223332321009. The next prime is 20223332321051. The reversal of 20223332321021 is 12012323332202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13827056325625 + 6396275995396 = 3718475^2 + 2529086^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223332321021 - 2³⁰ = 20222258579197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20223332321051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111666160510 + 10111666160511.

It is an arithmetic number, because the mean of its divisors is an integer number (10111666160511).

Almost surely, 2^{20223332321021} is an apocalyptic number.

It is an amenable number.

20223332321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223332321021 is an equidigital number, since it uses as much as digits as its factorization.

20223332321021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20223332321021 its reverse (12012323332202), we get a palindrome (32235655653223).

The spelling of 20223332321021 in words is "twenty trillion, two hundred twenty-three billion, three hundred thirty-two million, three hundred twenty-one thousand, twenty-one".