105071221515599 has 2 divisors, whose sum is σ = 105071221515600. Its totient is φ = 105071221515598.

The previous prime is 105071221515571. The next prime is 105071221515677. The reversal of 105071221515599 is 995515122170501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105071221515599 - 2²⁸ = 105070953080143 is a prime.

It is a super-2 number, since 2×105071221515599² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105071221515599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105071221515509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52535610757799 + 52535610757800.

It is an arithmetic number, because the mean of its divisors is an integer number (52535610757800).

Almost surely, 2^{105071221515599} is an apocalyptic number.

105071221515599 is a deficient number, since it is larger than the sum of its proper divisors (1).

105071221515599 is an equidigital number, since it uses as much as digits as its factorization.

105071221515599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417500, while the sum is 53.

The spelling of 105071221515599 in words is "one hundred five trillion, seventy-one billion, two hundred twenty-one million, five hundred fifteen thousand, five hundred ninety-nine".