12304422011221 has 2 divisors, whose sum is σ = 12304422011222. Its totient is φ = 12304422011220.

The previous prime is 12304422011179. The next prime is 12304422011227. The reversal of 12304422011221 is 12211022440321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6996628072996 + 5307793938225 = 2645114^2 + 2303865^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304422011221 - 2⁹ = 12304422010709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12304422011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152211005610 + 6152211005611.

It is an arithmetic number, because the mean of its divisors is an integer number (6152211005611).

Almost surely, 2^{12304422011221} is an apocalyptic number.

It is an amenable number.

12304422011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304422011221 is an equidigital number, since it uses as much as digits as its factorization.

12304422011221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12304422011221 its reverse (12211022440321), we get a palindrome (24515444451542).

The spelling of 12304422011221 in words is "twelve trillion, three hundred four billion, four hundred twenty-two million, eleven thousand, two hundred twenty-one".