1100001222197 has 2 divisors, whose sum is σ = 1100001222198. Its totient is φ = 1100001222196.

The previous prime is 1100001222179. The next prime is 1100001222209. The reversal of 1100001222197 is 7912221000011.

Together with previous prime (1100001222179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045763935876 + 54237286321 = 1022626^2 + 232889^2 .

It is an emirp because it is prime and its reverse (7912221000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100001222197 - 2⁸ = 1100001221941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100001222107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000611098 + 550000611099.

It is an arithmetic number, because the mean of its divisors is an integer number (550000611099).

Almost surely, 2^{1100001222197} is an apocalyptic number.

It is an amenable number.

1100001222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100001222197 is an equidigital number, since it uses as much as digits as its factorization.

1100001222197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 1100001222197 in words is "one trillion, one hundred billion, one million, two hundred twenty-two thousand, one hundred ninety-seven".