1223223122197 has 2 divisors, whose sum is σ = 1223223122198. Its totient is φ = 1223223122196.

The previous prime is 1223223122189. The next prime is 1223223122267. The reversal of 1223223122197 is 7912213223221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007773046641 + 215450075556 = 1003879^2 + 464166^2 .

It is an emirp because it is prime and its reverse (7912213223221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223223122197 - 2³ = 1223223122189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223223122167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611611561098 + 611611561099.

It is an arithmetic number, because the mean of its divisors is an integer number (611611561099).

Almost surely, 2^{1223223122197} is an apocalyptic number.

It is an amenable number.

1223223122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223223122197 is an equidigital number, since it uses as much as digits as its factorization.

1223223122197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The spelling of 1223223122197 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred ninety-seven".