12452511224261 has 2 divisors, whose sum is σ = 12452511224262. Its totient is φ = 12452511224260.

The previous prime is 12452511224147. The next prime is 12452511224273. The reversal of 12452511224261 is 16242211525421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12289448708161 + 163062516100 = 3505631^2 + 403810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12452511224261 is a prime.

It is a super-2 number, since 2×12452511224261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12452511224861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6226255612130 + 6226255612131.

It is an arithmetic number, because the mean of its divisors is an integer number (6226255612131).

Almost surely, 2^{12452511224261} is an apocalyptic number.

It is an amenable number.

12452511224261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12452511224261 is an equidigital number, since it uses as much as digits as its factorization.

12452511224261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 38.

Adding to 12452511224261 its reverse (16242211525421), we get a palindrome (28694722749682).

The spelling of 12452511224261 in words is "twelve trillion, four hundred fifty-two billion, five hundred eleven million, two hundred twenty-four thousand, two hundred sixty-one".