13103332221 has 32 divisors (see below), whose sum is σ = 20067176448. Its totient is φ = 7450148160.

The previous prime is 13103332169. The next prime is 13103332271. The reversal of 13103332221 is 12223330131.

It is not a de Polignac number, because 13103332221 - 2¹⁴ = 13103315837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103332271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3844300 + ... + 3847706.

It is an arithmetic number, because the mean of its divisors is an integer number (627099264).

Almost surely, 2^13103332221 is an apocalyptic number.

It is an amenable number.

13103332221 is a deficient number, since it is larger than the sum of its proper divisors (6963844227).

13103332221 is a wasteful number, since it uses less digits than its factorization.

13103332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13103332221 its reverse (12223330131), we get a palindrome (25326662352).

The spelling of 13103332221 in words is "thirteen billion, one hundred three million, three hundred thirty-two thousand, two hundred twenty-one".