222112211197 has 2 divisors, whose sum is σ = 222112211198. Its totient is φ = 222112211196.

The previous prime is 222112211159. The next prime is 222112211227. The reversal of 222112211197 is 791112211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220128934041 + 1983277156 = 469179^2 + 44534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222112211197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222112211297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056105598 + 111056105599.

It is an arithmetic number, because the mean of its divisors is an integer number (111056105599).

Almost surely, 2^222112211197 is an apocalyptic number.

It is an amenable number.

222112211197 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112211197 is an equidigital number, since it uses as much as digits as its factorization.

222112211197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The spelling of 222112211197 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, one hundred ninety-seven".