22289789321 has 2 divisors, whose sum is σ = 22289789322. Its totient is φ = 22289789320.

The previous prime is 22289789303. The next prime is 22289789323. The reversal of 22289789321 is 12398798222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20890655296 + 1399134025 = 144536^2 + 37405^2 .

It is a cyclic number.

It is not a de Polignac number, because 22289789321 - 2¹⁸ = 22289527177 is a prime.

Together with 22289789323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22289789323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11144894660 + 11144894661.

It is an arithmetic number, because the mean of its divisors is an integer number (11144894661).

Almost surely, 2^22289789321 is an apocalyptic number.

It is an amenable number.

22289789321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22289789321 is an equidigital number, since it uses as much as digits as its factorization.

22289789321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The spelling of 22289789321 in words is "twenty-two billion, two hundred eighty-nine million, seven hundred eighty-nine thousand, three hundred twenty-one".