22444004431 has 2 divisors, whose sum is σ = 22444004432. Its totient is φ = 22444004430.

The previous prime is 22444004419. The next prime is 22444004449. The reversal of 22444004431 is 13440044422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22444004431 - 2²⁷ = 22309786703 is a prime.

It is a super-2 number, since 2×22444004431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22444004431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22444004491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222002215 + 11222002216.

It is an arithmetic number, because the mean of its divisors is an integer number (11222002216).

Almost surely, 2^22444004431 is an apocalyptic number.

22444004431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444004431 is an equidigital number, since it uses as much as digits as its factorization.

22444004431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22444004431 its reverse (13440044422), we get a palindrome (35884048853).

The spelling of 22444004431 in words is "twenty-two billion, four hundred forty-four million, four thousand, four hundred thirty-one".