1222413149 has 2 divisors, whose sum is σ = 1222413150. Its totient is φ = 1222413148.

The previous prime is 1222413139. The next prime is 1222413161. The reversal of 1222413149 is 9413142221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1208049049 + 14364100 = 34757^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222413149 - 2²⁴ = 1205635933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222413139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611206574 + 611206575.

It is an arithmetic number, because the mean of its divisors is an integer number (611206575).

Almost surely, 2^1222413149 is an apocalyptic number.

It is an amenable number.

1222413149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222413149 is an equidigital number, since it uses as much as digits as its factorization.

1222413149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1222413149 is about 34963.0254554722. The cubic root of 1222413149 is about 1069.2337802085.

The spelling of 1222413149 in words is "one billion, two hundred twenty-two million, four hundred thirteen thousand, one hundred forty-nine".