12455122372261 has 2 divisors, whose sum is σ = 12455122372262. Its totient is φ = 12455122372260.

The previous prime is 12455122372229. The next prime is 12455122372279. The reversal of 12455122372261 is 16227322155421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11302438848100 + 1152683524161 = 3361910^2 + 1073631^2 .

It is a cyclic number.

It is not a de Polignac number, because 12455122372261 - 2⁵ = 12455122372229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12455122372361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227561186130 + 6227561186131.

It is an arithmetic number, because the mean of its divisors is an integer number (6227561186131).

Almost surely, 2^{12455122372261} is an apocalyptic number.

It is an amenable number.

12455122372261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455122372261 is an equidigital number, since it uses as much as digits as its factorization.

12455122372261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 43.

The spelling of 12455122372261 in words is "twelve trillion, four hundred fifty-five billion, one hundred twenty-two million, three hundred seventy-two thousand, two hundred sixty-one".