12302322221 has 12 divisors (see below), whose sum is σ = 14935495968. Its totient is φ = 9924560832.

The previous prime is 12302322173. The next prime is 12302322313. The reversal of 12302322221 is 12222320321.

It is a happy number.

12302322221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12302322221 - 2¹⁰ = 12302321197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12302322193 and 12302322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302022221) 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 11 ways as a sum of consecutive naturals, for example, 3038591 + ... + 3042636.

It is an arithmetic number, because the mean of its divisors is an integer number (1244624664).

Almost surely, 2^12302322221 is an apocalyptic number.

It is an amenable number.

12302322221 is a deficient number, since it is larger than the sum of its proper divisors (2633173747).

12302322221 is an equidigital number, since it uses as much as digits as its factorization.

12302322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081268 (or 6081251 counting only the distinct ones).

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

Adding to 12302322221 its reverse (12222320321), we get a palindrome (24524642542).

The spelling of 12302322221 in words is "twelve billion, three hundred two million, three hundred twenty-two thousand, two hundred twenty-one".