13303303101221 has 4 divisors (see below), whose sum is σ = 15203774972832. Its totient is φ = 11402831229612.

The previous prime is 13303303101197. The next prime is 13303303101239. The reversal of 13303303101221 is 12210130330331.

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 13303303101221 - 2²⁶ = 13303235992357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303303101251) 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, 950235935795 + ... + 950235935808.

It is an arithmetic number, because the mean of its divisors is an integer number (3800943743208).

Almost surely, 2^{13303303101221} is an apocalyptic number.

It is an amenable number.

13303303101221 is a deficient number, since it is larger than the sum of its proper divisors (1900471871611).

13303303101221 is an equidigital number, since it uses as much as digits as its factorization.

13303303101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900471871610.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 13303303101221 its reverse (12210130330331), we get a palindrome (25513433431552).

The spelling of 13303303101221 in words is "thirteen trillion, three hundred three billion, three hundred three million, one hundred one thousand, two hundred twenty-one".