13232213221 has 4 divisors (see below), whose sum is σ = 13294925344. Its totient is φ = 13169501100.

The previous prime is 13232213153. The next prime is 13232213233. The reversal of 13232213221 is 12231223231.

13232213221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13232213221 - 2¹⁹ = 13231688933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13232213192 and 13232213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232213521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31355745 + ... + 31356166.

It is an arithmetic number, because the mean of its divisors is an integer number (3323731336).

Almost surely, 2^13232213221 is an apocalyptic number.

It is an amenable number.

13232213221 is a deficient number, since it is larger than the sum of its proper divisors (62712123).

13232213221 is an equidigital number, since it uses as much as digits as its factorization.

13232213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62712122.

The product of its digits is 864, while the sum is 22.

Adding to 13232213221 its reverse (12231223231), we get a palindrome (25463436452).

The spelling of 13232213221 in words is "thirteen billion, two hundred thirty-two million, two hundred thirteen thousand, two hundred twenty-one".