22722283561421 has 2 divisors, whose sum is σ = 22722283561422. Its totient is φ = 22722283561420.

The previous prime is 22722283561333. The next prime is 22722283561457. The reversal of 22722283561421 is 12416538222722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13546897333321 + 9175386228100 = 3680611^2 + 3029090^2 .

It is a cyclic number.

It is not a de Polignac number, because 22722283561421 - 2¹⁴ = 22722283545037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22722283560421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361141780710 + 11361141780711.

It is an arithmetic number, because the mean of its divisors is an integer number (11361141780711).

Almost surely, 2^{22722283561421} is an apocalyptic number.

It is an amenable number.

22722283561421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22722283561421 is an equidigital number, since it uses as much as digits as its factorization.

22722283561421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The spelling of 22722283561421 in words is "twenty-two trillion, seven hundred twenty-two billion, two hundred eighty-three million, five hundred sixty-one thousand, four hundred twenty-one".