12163361442217 has 2 divisors, whose sum is σ = 12163361442218. Its totient is φ = 12163361442216.

The previous prime is 12163361442203. The next prime is 12163361442289. The reversal of 12163361442217 is 71224416336121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10673445816576 + 1489915625641 = 3267024^2 + 1220621^2 .

It is a cyclic number.

It is not a de Polignac number, because 12163361442217 - 2¹¹ = 12163361440169 is a prime.

It is a super-2 number, since 2×12163361442217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12163361242217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081680721108 + 6081680721109.

It is an arithmetic number, because the mean of its divisors is an integer number (6081680721109).

Almost surely, 2^{12163361442217} is an apocalyptic number.

It is an amenable number.

12163361442217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12163361442217 is an equidigital number, since it uses as much as digits as its factorization.

12163361442217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

Adding to 12163361442217 its reverse (71224416336121), we get a palindrome (83387777778338).

The spelling of 12163361442217 in words is "twelve trillion, one hundred sixty-three billion, three hundred sixty-one million, four hundred forty-two thousand, two hundred seventeen".