2222222222197 has 2 divisors, whose sum is σ = 2222222222198. Its totient is φ = 2222222222196.

The previous prime is 2222222222191. The next prime is 2222222222243. The reversal of 2222222222197 is 7912222222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2062342999396 + 159879222801 = 1436086^2 + 399849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222222222197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222222222191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111111111098 + 1111111111099.

It is an arithmetic number, because the mean of its divisors is an integer number (1111111111099).

Almost surely, 2^{2222222222197} is an apocalyptic number.

It is an amenable number.

2222222222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222222222197 is an equidigital number, since it uses as much as digits as its factorization.

2222222222197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

It can be divided in two parts, 2222222222 and 197, that multiplied together give a palindrome (437777777734).

The spelling of 2222222222197 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-seven".