12011222022197 has 2 divisors, whose sum is σ = 12011222022198. Its totient is φ = 12011222022196.

The previous prime is 12011222022187. The next prime is 12011222022209. The reversal of 12011222022197 is 79122022211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11598921906961 + 412300115236 = 3405719^2 + 642106^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011222022197 - 2⁶ = 12011222022133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011222022127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005611011098 + 6005611011099.

It is an arithmetic number, because the mean of its divisors is an integer number (6005611011099).

Almost surely, 2^{12011222022197} is an apocalyptic number.

It is an amenable number.

12011222022197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011222022197 is an equidigital number, since it uses as much as digits as its factorization.

12011222022197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 12011222022197 in words is "twelve trillion, eleven billion, two hundred twenty-two million, twenty-two thousand, one hundred ninety-seven".