13105330214221 has 16 divisors (see below), whose sum is σ = 15239623956480. Its totient is φ = 11036768586480.

The previous prime is 13105330214153. The next prime is 13105330214239. The reversal of 13105330214221 is 12241203350131.

It is not a de Polignac number, because 13105330214221 - 2¹¹ = 13105330212173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13105330214221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105330214281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7827345 + ... + 9352966.

It is an arithmetic number, because the mean of its divisors is an integer number (952476497280).

Almost surely, 2^{13105330214221} is an apocalyptic number.

It is an amenable number.

13105330214221 is a deficient number, since it is larger than the sum of its proper divisors (2134293742259).

13105330214221 is a wasteful number, since it uses less digits than its factorization.

13105330214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17182224.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 13105330214221 its reverse (12241203350131), we get a palindrome (25346533564352).

The spelling of 13105330214221 in words is "thirteen trillion, one hundred five billion, three hundred thirty million, two hundred fourteen thousand, two hundred twenty-one".