12324174221 has 2 divisors, whose sum is σ = 12324174222. Its totient is φ = 12324174220.

The previous prime is 12324174211. The next prime is 12324174263. The reversal of 12324174221 is 12247142321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10057081225 + 2267092996 = 100285^2 + 47614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12324174221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12324174211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6162087110 + 6162087111.

It is an arithmetic number, because the mean of its divisors is an integer number (6162087111).

Almost surely, 2^12324174221 is an apocalyptic number.

It is an amenable number.

12324174221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12324174221 is an equidigital number, since it uses as much as digits as its factorization.

12324174221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The spelling of 12324174221 in words is "twelve billion, three hundred twenty-four million, one hundred seventy-four thousand, two hundred twenty-one".