13232330221 has 12 divisors (see below), whose sum is σ = 15046170300. Its totient is φ = 11614581440.

The previous prime is 13232330219. The next prime is 13232330231. The reversal of 13232330221 is 12203323231.

It can be written as a sum of positive squares in 2 ways, for example, as 6652849225 + 6579480996 = 81565^2 + 81114^2 .

It is not a de Polignac number, because 13232330221 - 2¹ = 13232330219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13232330192 and 13232330201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232330231) 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 11 ways as a sum of consecutive naturals, for example, 1881976 + ... + 1888993.

It is an arithmetic number, because the mean of its divisors is an integer number (1253847525).

Almost surely, 2^13232330221 is an apocalyptic number.

13232330221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13232330221 is a deficient number, since it is larger than the sum of its proper divisors (1813840079).

13232330221 is a wasteful number, since it uses less digits than its factorization.

13232330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771020 (or 3771009 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13232330221 its reverse (12203323231), we get a palindrome (25435653452).

The spelling of 13232330221 in words is "thirteen billion, two hundred thirty-two million, three hundred thirty thousand, two hundred twenty-one".