22244230331 has 2 divisors, whose sum is σ = 22244230332. Its totient is φ = 22244230330.

The previous prime is 22244230313. The next prime is 22244230339. The reversal of 22244230331 is 13303244222.

Together with previous prime (22244230313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22244230331 is a prime.

It is a super-2 number, since 2×22244230331² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22244230331.

It is not a weakly prime, because it can be changed into another prime (22244230339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122115165 + 11122115166.

It is an arithmetic number, because the mean of its divisors is an integer number (11122115166).

Almost surely, 2^22244230331 is an apocalyptic number.

22244230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244230331 is an equidigital number, since it uses as much as digits as its factorization.

22244230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 22244230331 its reverse (13303244222), we get a palindrome (35547474553).

The spelling of 22244230331 in words is "twenty-two billion, two hundred forty-four million, two hundred thirty thousand, three hundred thirty-one".