12302333221 has 2 divisors, whose sum is σ = 12302333222. Its totient is φ = 12302333220.

The previous prime is 12302333201. The next prime is 12302333273. The reversal of 12302333221 is 12233320321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8192241121 + 4110092100 = 90511^2 + 64110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302333221 - 2⁵ = 12302333189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12302333192 and 12302333201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12302333201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151166610 + 6151166611.

It is an arithmetic number, because the mean of its divisors is an integer number (6151166611).

Almost surely, 2^12302333221 is an apocalyptic number.

It is an amenable number.

12302333221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302333221 is an equidigital number, since it uses as much as digits as its factorization.

12302333221 is an evil number, because the sum of its binary digits is even.

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

Adding to 12302333221 its reverse (12233320321), we get a palindrome (24535653542).

The spelling of 12302333221 in words is "twelve billion, three hundred two million, three hundred thirty-three thousand, two hundred twenty-one".