13105892616221 has 4 divisors (see below), whose sum is σ = 13200179613600. Its totient is φ = 13011605618844.

The previous prime is 13105892616169. The next prime is 13105892616241. The reversal of 13105892616221 is 12261629850131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13105892616221 - 2²² = 13105888421917 is a prime.

It is a super-3 number, since 3×13105892616221³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105892616241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47143498481 + ... + 47143498758.

It is an arithmetic number, because the mean of its divisors is an integer number (3300044903400).

Almost surely, 2^{13105892616221} is an apocalyptic number.

It is an amenable number.

13105892616221 is a deficient number, since it is larger than the sum of its proper divisors (94286997379).

13105892616221 is an equidigital number, since it uses as much as digits as its factorization.

13105892616221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94286997378.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 13105892616221 in words is "thirteen trillion, one hundred five billion, eight hundred ninety-two million, six hundred sixteen thousand, two hundred twenty-one".