13521422412499 has 2 divisors, whose sum is σ = 13521422412500. Its totient is φ = 13521422412498.

The previous prime is 13521422412467. The next prime is 13521422412503. The reversal of 13521422412499 is 99421422412531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13521422412499 - 2⁵ = 13521422412467 is a prime.

It is a super-2 number, since 2×13521422412499² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13521422412299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760711206249 + 6760711206250.

It is an arithmetic number, because the mean of its divisors is an integer number (6760711206250).

Almost surely, 2^{13521422412499} is an apocalyptic number.

13521422412499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521422412499 is an equidigital number, since it uses as much as digits as its factorization.

13521422412499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The spelling of 13521422412499 in words is "thirteen trillion, five hundred twenty-one billion, four hundred twenty-two million, four hundred twelve thousand, four hundred ninety-nine".