1122211309 has 2 divisors, whose sum is σ = 1122211310. Its totient is φ = 1122211308.

The previous prime is 1122211301. The next prime is 1122211319. The reversal of 1122211309 is 9031122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840710025 + 281501284 = 28995^2 + 16778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122211309 - 2³ = 1122211301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122211309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122211301) 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, 561105654 + 561105655.

It is an arithmetic number, because the mean of its divisors is an integer number (561105655).

Almost surely, 2^1122211309 is an apocalyptic number.

It is an amenable number.

1122211309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122211309 is an equidigital number, since it uses as much as digits as its factorization.

1122211309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1122211309 is about 33499.4225174107. The cubic root of 1122211309 is about 1039.1818358737.

The spelling of 1122211309 in words is "one billion, one hundred twenty-two million, two hundred eleven thousand, three hundred nine".