12083946221 has 2 divisors, whose sum is σ = 12083946222. Its totient is φ = 12083946220.

The previous prime is 12083946197. The next prime is 12083946247. The reversal of 12083946221 is 12264938021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7921890025 + 4162056196 = 89005^2 + 64514^2 .

It is a cyclic number.

It is not a de Polignac number, because 12083946221 - 2¹⁸ = 12083684077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12083949221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6041973110 + 6041973111.

It is an arithmetic number, because the mean of its divisors is an integer number (6041973111).

Almost surely, 2^12083946221 is an apocalyptic number.

It is an amenable number.

12083946221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12083946221 is an equidigital number, since it uses as much as digits as its factorization.

12083946221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 12083946221 in words is "twelve billion, eighty-three million, nine hundred forty-six thousand, two hundred twenty-one".