12303021230221 has 2 divisors, whose sum is σ = 12303021230222. Its totient is φ = 12303021230220.

The previous prime is 12303021230219. The next prime is 12303021230233. The reversal of 12303021230221 is 12203212030321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7990176356100 + 4312844874121 = 2826690^2 + 2076739^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303021230221 - 2¹ = 12303021230219 is a prime.

Together with 12303021230219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12303021230192 and 12303021230201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12303021234221) 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 as a sum of consecutive naturals, namely, 6151510615110 + 6151510615111.

It is an arithmetic number, because the mean of its divisors is an integer number (6151510615111).

Almost surely, 2^{12303021230221} is an apocalyptic number.

It is an amenable number.

12303021230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303021230221 is an equidigital number, since it uses as much as digits as its factorization.

12303021230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12303021230221 its reverse (12203212030321), we get a palindrome (24506233260542).

The spelling of 12303021230221 in words is "twelve trillion, three hundred three billion, twenty-one million, two hundred thirty thousand, two hundred twenty-one".