1222345529 has 2 divisors, whose sum is σ = 1222345530. Its totient is φ = 1222345528.

The previous prime is 1222345517. The next prime is 1222345573. The reversal of 1222345529 is 9255432221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1164174400 + 58171129 = 34120^2 + 7627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222345529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1222341529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611172764 + 611172765.

It is an arithmetic number, because the mean of its divisors is an integer number (611172765).

Almost surely, 2^1222345529 is an apocalyptic number.

It is an amenable number.

1222345529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222345529 is an equidigital number, since it uses as much as digits as its factorization.

1222345529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 1222345529 is about 34962.0584205221. The cubic root of 1222345529 is about 1069.2140643098.

The spelling of 1222345529 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, five hundred twenty-nine".