13100233221 has 16 divisors (see below), whose sum is σ = 20429214400. Its totient is φ = 8273831184.

The previous prime is 13100233213. The next prime is 13100233229. The reversal of 13100233221 is 12233200131.

13100233221 is a `hidden beast` number, since 1 + 310 + 0 + 2 + 332 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (13100233213) and next prime (13100233229).

It is not a de Polignac number, because 13100233221 - 2³ = 13100233213 is a prime.

It is a super-2 number, since 2×13100233221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13100233194 and 13100233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100233229) 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, 12767746 + ... + 12768771.

It is an arithmetic number, because the mean of its divisors is an integer number (1276825900).

Almost surely, 2^13100233221 is an apocalyptic number.

It is an amenable number.

13100233221 is a deficient number, since it is larger than the sum of its proper divisors (7328981179).

13100233221 is a wasteful number, since it uses less digits than its factorization.

13100233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25536545 (or 25536539 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13100233221 its reverse (12233200131), we get a palindrome (25333433352).

The spelling of 13100233221 in words is "thirteen billion, one hundred million, two hundred thirty-three thousand, two hundred twenty-one".