12329754221 has 2 divisors, whose sum is σ = 12329754222. Its totient is φ = 12329754220.

The previous prime is 12329754179. The next prime is 12329754247. The reversal of 12329754221 is 12245792321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7066251721 + 5263502500 = 84061^2 + 72550^2 .

It is a cyclic number.

It is not a de Polignac number, because 12329754221 - 2¹⁰ = 12329753197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12329754821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6164877110 + 6164877111.

It is an arithmetic number, because the mean of its divisors is an integer number (6164877111).

Almost surely, 2^12329754221 is an apocalyptic number.

It is an amenable number.

12329754221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12329754221 is an equidigital number, since it uses as much as digits as its factorization.

12329754221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The spelling of 12329754221 in words is "twelve billion, three hundred twenty-nine million, seven hundred fifty-four thousand, two hundred twenty-one".