12232302221 has 8 divisors (see below), whose sum is σ = 12845445504. Its totient is φ = 11625934320.

The previous prime is 12232302217. The next prime is 12232302233. The reversal of 12232302221 is 12220323221.

It is a happy number.

12232302221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12232302221 - 2² = 12232302217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232302193 and 12232302202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232302211) 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 7 ways as a sum of consecutive naturals, for example, 1690145 + ... + 1697366.

It is an arithmetic number, because the mean of its divisors is an integer number (1605680688).

Almost surely, 2^12232302221 is an apocalyptic number.

It is an amenable number.

12232302221 is a deficient number, since it is larger than the sum of its proper divisors (613143283).

12232302221 is a wasteful number, since it uses less digits than its factorization.

12232302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387691.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12232302221 its reverse (12220323221), we get a palindrome (24452625442).

The spelling of 12232302221 in words is "twelve billion, two hundred thirty-two million, three hundred two thousand, two hundred twenty-one".