1223222222197 has 2 divisors, whose sum is σ = 1223222222198. Its totient is φ = 1223222222196.

The previous prime is 1223222222179. The next prime is 1223222222219. The reversal of 1223222222197 is 7912222223221.

Together with previous prime (1223222222179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794889932356 + 428332289841 = 891566^2 + 654471^2 .

It is an emirp because it is prime and its reverse (7912222223221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223222222197 - 2²⁷ = 1223088004469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223222222597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611611111098 + 611611111099.

It is an arithmetic number, because the mean of its divisors is an integer number (611611111099).

Almost surely, 2^{1223222222197} is an apocalyptic number.

It is an amenable number.

1223222222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223222222197 is an equidigital number, since it uses as much as digits as its factorization.

1223222222197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The spelling of 1223222222197 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-seven".