22444244505013 has 2 divisors, whose sum is σ = 22444244505014. Its totient is φ = 22444244505012.

The previous prime is 22444244504911. The next prime is 22444244505041. The reversal of 22444244505013 is 31050544244422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14652068151204 + 7792176353809 = 3827802^2 + 2791447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22444244505013 is a prime.

It is a super-2 number, since 2×22444244505013² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22444244505713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222122252506 + 11222122252507.

It is an arithmetic number, because the mean of its divisors is an integer number (11222122252507).

Almost surely, 2^{22444244505013} is an apocalyptic number.

It is an amenable number.

22444244505013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444244505013 is an equidigital number, since it uses as much as digits as its factorization.

22444244505013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 22444244505013 its reverse (31050544244422), we get a palindrome (53494788749435).

The spelling of 22444244505013 in words is "twenty-two trillion, four hundred forty-four billion, two hundred forty-four million, five hundred five thousand, thirteen".