1009221689017 has 2 divisors, whose sum is σ = 1009221689018. Its totient is φ = 1009221689016.

The previous prime is 1009221689011. The next prime is 1009221689041. The reversal of 1009221689017 is 7109861229001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006779451456 + 2442237561 = 1003384^2 + 49419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009221689017 - 2³ = 1009221689009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1009221689011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504610844508 + 504610844509.

It is an arithmetic number, because the mean of its divisors is an integer number (504610844509).

Almost surely, 2^{1009221689017} is an apocalyptic number.

It is an amenable number.

1009221689017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009221689017 is an equidigital number, since it uses as much as digits as its factorization.

1009221689017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 1009221689017 in words is "one trillion, nine billion, two hundred twenty-one million, six hundred eighty-nine thousand, seventeen".