1009221113 has 2 divisors, whose sum is σ = 1009221114. Its totient is φ = 1009221112.

The previous prime is 1009221079. The next prime is 1009221179. The reversal of 1009221113 is 3111229001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006919824 + 2301289 = 31732^2 + 1517^2 .

It is an emirp because it is prime and its reverse (3111229001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009221113 - 2¹⁰ = 1009220089 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 (1009221313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504610556 + 504610557.

It is an arithmetic number, because the mean of its divisors is an integer number (504610557).

Almost surely, 2^1009221113 is an apocalyptic number.

It is an amenable number.

1009221113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009221113 is an equidigital number, since it uses as much as digits as its factorization.

1009221113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1009221113 is about 31768.2406343190. The cubic root of 1009221113 is about 1003.0643047783.

The spelling of 1009221113 in words is "one billion, nine million, two hundred twenty-one thousand, one hundred thirteen".