12224155231361 has 2 divisors, whose sum is σ = 12224155231362. Its totient is φ = 12224155231360.

The previous prime is 12224155231297. The next prime is 12224155231367. The reversal of 12224155231361 is 16313255142221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12214885200400 + 9270030961 = 3494980^2 + 96281^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224155231361 - 2⁶ = 12224155231297 is a prime.

It is a super-2 number, since 2×12224155231361² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12224155231367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112077615680 + 6112077615681.

It is an arithmetic number, because the mean of its divisors is an integer number (6112077615681).

Almost surely, 2^{12224155231361} is an apocalyptic number.

It is an amenable number.

12224155231361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224155231361 is an equidigital number, since it uses as much as digits as its factorization.

12224155231361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The spelling of 12224155231361 in words is "twelve trillion, two hundred twenty-four billion, one hundred fifty-five million, two hundred thirty-one thousand, three hundred sixty-one".