12200021222197 has 2 divisors, whose sum is σ = 12200021222198. Its totient is φ = 12200021222196.

The previous prime is 12200021222171. The next prime is 12200021222269. The reversal of 12200021222197 is 79122212000221.

12200021222197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10338758575236 + 1861262646961 = 3215394^2 + 1364281^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200021222197 - 2⁷ = 12200021222069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200021222897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100010611098 + 6100010611099.

It is an arithmetic number, because the mean of its divisors is an integer number (6100010611099).

Almost surely, 2^{12200021222197} is an apocalyptic number.

It is an amenable number.

12200021222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200021222197 is an equidigital number, since it uses as much as digits as its factorization.

12200021222197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 12200021222197 in words is "twelve trillion, two hundred billion, twenty-one million, two hundred twenty-two thousand, one hundred ninety-seven".