1322222197 has 2 divisors, whose sum is σ = 1322222198. Its totient is φ = 1322222196.

The previous prime is 1322222171. The next prime is 1322222233. The reversal of 1322222197 is 7912222231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 939667716 + 382554481 = 30654^2 + 19559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322222197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322222147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661111098 + 661111099.

It is an arithmetic number, because the mean of its divisors is an integer number (661111099).

Almost surely, 2^1322222197 is an apocalyptic number.

It is an amenable number.

1322222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322222197 is an equidigital number, since it uses as much as digits as its factorization.

1322222197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 1322222197 is about 36362.3733686348. The cubic root of 1322222197 is about 1097.5765371253.

The spelling of 1322222197 in words is "one billion, three hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-seven".