12303021234221 has 2 divisors, whose sum is σ = 12303021234222. Its totient is φ = 12303021234220.

The previous prime is 12303021234143. The next prime is 12303021234323. The reversal of 12303021234221 is 12243212030321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6721548834025 + 5581472400196 = 2592595^2 + 2362514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12303021234221 is a prime.

It is a super-3 number, since 3×12303021234221³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12303021234521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151510617110 + 6151510617111.

It is an arithmetic number, because the mean of its divisors is an integer number (6151510617111).

Almost surely, 2^{12303021234221} is an apocalyptic number.

It is an amenable number.

12303021234221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303021234221 is an equidigital number, since it uses as much as digits as its factorization.

12303021234221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12303021234221 its reverse (12243212030321), we get a palindrome (24546233264542).

The spelling of 12303021234221 in words is "twelve trillion, three hundred three billion, twenty-one million, two hundred thirty-four thousand, two hundred twenty-one".