1001232217 has 2 divisors, whose sum is σ = 1001232218. Its totient is φ = 1001232216.

The previous prime is 1001232191. The next prime is 1001232233. The reversal of 1001232217 is 7122321001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752350041 + 248882176 = 27429^2 + 15776^2 .

It is an emirp because it is prime and its reverse (7122321001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001232217 - 2¹¹ = 1001230169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001232194 and 1001232203.

It is not a weakly prime, because it can be changed into another prime (1001232517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500616108 + 500616109.

It is an arithmetic number, because the mean of its divisors is an integer number (500616109).

Almost surely, 2^1001232217 is an apocalyptic number.

It is an amenable number.

1001232217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001232217 is an equidigital number, since it uses as much as digits as its factorization.

1001232217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1001232217 is about 31642.2536649967. The cubic root of 1001232217 is about 1000.4105704089.

Adding to 1001232217 its reverse (7122321001), we get a palindrome (8123553218).

The spelling of 1001232217 in words is "one billion, one million, two hundred thirty-two thousand, two hundred seventeen".