12202010221 has 2 divisors, whose sum is σ = 12202010222. Its totient is φ = 12202010220.

The previous prime is 12202010213. The next prime is 12202010239. The reversal of 12202010221 is 12201020221.

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., 6556140900 + 5645869321 = 80970^2 + 75139^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202010221 - 2³ = 12202010213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202010281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101005110 + 6101005111.

It is an arithmetic number, because the mean of its divisors is an integer number (6101005111).

Almost surely, 2^12202010221 is an apocalyptic number.

It is an amenable number.

12202010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202010221 is an equidigital number, since it uses as much as digits as its factorization.

12202010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12202010221 its reverse (12201020221), we get a palindrome (24403030442).

The spelling of 12202010221 in words is "twelve billion, two hundred two million, ten thousand, two hundred twenty-one".