13225424095421 has 2 divisors, whose sum is σ = 13225424095422. Its totient is φ = 13225424095420.

The previous prime is 13225424095397. The next prime is 13225424095463. The reversal of 13225424095421 is 12459042452231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11589864463321 + 1635559632100 = 3404389^2 + 1278890^2 .

It is an emirp because it is prime and its reverse (12459042452231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13225424095421 - 2⁶ = 13225424095357 is a prime.

It is a super-2 number, since 2×13225424095421² (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 (13225424095021) 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, 6612712047710 + 6612712047711.

It is an arithmetic number, because the mean of its divisors is an integer number (6612712047711).

Almost surely, 2^{13225424095421} is an apocalyptic number.

It is an amenable number.

13225424095421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13225424095421 is an equidigital number, since it uses as much as digits as its factorization.

13225424095421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 13225424095421 in words is "thirteen trillion, two hundred twenty-five billion, four hundred twenty-four million, ninety-five thousand, four hundred twenty-one".