22440433217 has 2 divisors, whose sum is σ = 22440433218. Its totient is φ = 22440433216.

The previous prime is 22440433201. The next prime is 22440433297. The reversal of 22440433217 is 71233404422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21257348401 + 1183084816 = 145799^2 + 34396^2 .

It is a cyclic number.

It is not a de Polignac number, because 22440433217 - 2⁴ = 22440433201 is a prime.

It is not a weakly prime, because it can be changed into another prime (22440433297) 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, 11220216608 + 11220216609.

It is an arithmetic number, because the mean of its divisors is an integer number (11220216609).

Almost surely, 2^22440433217 is an apocalyptic number.

It is an amenable number.

22440433217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22440433217 is an equidigital number, since it uses as much as digits as its factorization.

22440433217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 22440433217 its reverse (71233404422), we get a palindrome (93673837639).

The spelling of 22440433217 in words is "twenty-two billion, four hundred forty million, four hundred thirty-three thousand, two hundred seventeen".