12200000100221 has 2 divisors, whose sum is σ = 12200000100222. Its totient is φ = 12200000100220.

The previous prime is 12200000100203. The next prime is 12200000100247. The reversal of 12200000100221 is 12200100000221.

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., 11561774868121 + 638225232100 = 3400261^2 + 798890^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200000100221 - 2²⁶ = 12199932991357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200000102221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100000050110 + 6100000050111.

It is an arithmetic number, because the mean of its divisors is an integer number (6100000050111).

Almost surely, 2^{12200000100221} is an apocalyptic number.

It is an amenable number.

12200000100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200000100221 is an equidigital number, since it uses as much as digits as its factorization.

12200000100221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12200000100221 its reverse (12200100000221), we get a palindrome (24400100100442).

The spelling of 12200000100221 in words is "twelve trillion, two hundred billion, one hundred thousand, two hundred twenty-one".