13003311112221 has 4 divisors (see below), whose sum is σ = 17337748149632. Its totient is φ = 8668874074812.

The previous prime is 13003311112213. The next prime is 13003311112241. The reversal of 13003311112221 is 12221111330031.

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 not a de Polignac number, because 13003311112221 - 2³ = 13003311112213 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 (13003311112241) 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, 2167218518701 + ... + 2167218518706.

It is an arithmetic number, because the mean of its divisors is an integer number (4334437037408).

Almost surely, 2^{13003311112221} is an apocalyptic number.

It is an amenable number.

13003311112221 is a deficient number, since it is larger than the sum of its proper divisors (4334437037411).

13003311112221 is an equidigital number, since it uses as much as digits as its factorization.

13003311112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334437037410.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13003311112221 its reverse (12221111330031), we get a palindrome (25224422442252).

The spelling of 13003311112221 in words is "thirteen trillion, three billion, three hundred eleven million, one hundred twelve thousand, two hundred twenty-one".