22144331449 has 2 divisors, whose sum is σ = 22144331450. Its totient is φ = 22144331448.

The previous prime is 22144331411. The next prime is 22144331453. The reversal of 22144331449 is 94413344122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21365084224 + 779247225 = 146168^2 + 27915^2 .

It is a cyclic number.

It is not a de Polignac number, because 22144331449 - 2²³ = 22135942841 is a prime.

It is not a weakly prime, because it can be changed into another prime (22144331459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072165724 + 11072165725.

It is an arithmetic number, because the mean of its divisors is an integer number (11072165725).

Almost surely, 2^22144331449 is an apocalyptic number.

It is an amenable number.

22144331449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144331449 is an equidigital number, since it uses as much as digits as its factorization.

22144331449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The spelling of 22144331449 in words is "twenty-two billion, one hundred forty-four million, three hundred thirty-one thousand, four hundred forty-nine".