12222200197 has 2 divisors, whose sum is σ = 12222200198. Its totient is φ = 12222200196.

The previous prime is 12222200147. The next prime is 12222200227. The reversal of 12222200197 is 79100222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9479164321 + 2743035876 = 97361^2 + 52374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222200197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222200147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111100098 + 6111100099.

It is an arithmetic number, because the mean of its divisors is an integer number (6111100099).

Almost surely, 2^12222200197 is an apocalyptic number.

It is an amenable number.

12222200197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222200197 is an equidigital number, since it uses as much as digits as its factorization.

12222200197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 12222200197 in words is "twelve billion, two hundred twenty-two million, two hundred thousand, one hundred ninety-seven".