22443223255331 has 2 divisors, whose sum is σ = 22443223255332. Its totient is φ = 22443223255330.

The previous prime is 22443223255319. The next prime is 22443223255337. The reversal of 22443223255331 is 13355232234422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22443223255331 is a prime.

It is a super-2 number, since 2×22443223255331² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22443223255337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11221611627665 + 11221611627666.

It is an arithmetic number, because the mean of its divisors is an integer number (11221611627666).

Almost surely, 2^{22443223255331} is an apocalyptic number.

22443223255331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22443223255331 is an equidigital number, since it uses as much as digits as its factorization.

22443223255331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 41.

Adding to 22443223255331 its reverse (13355232234422), we get a palindrome (35798455489753).

The spelling of 22443223255331 in words is "twenty-two trillion, four hundred forty-three billion, two hundred twenty-three million, two hundred fifty-five thousand, three hundred thirty-one".