999982234217 has 2 divisors, whose sum is σ = 999982234218. Its totient is φ = 999982234216.

The previous prime is 999982234201. The next prime is 999982234219. The reversal of 999982234217 is 712432289999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 834264851161 + 165717383056 = 913381^2 + 407084^2 .

It is a cyclic number.

It is not a de Polignac number, because 999982234217 - 2⁴ = 999982234201 is a prime.

Together with 999982234219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999982234219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499991117108 + 499991117109.

It is an arithmetic number, because the mean of its divisors is an integer number (499991117109).

Almost surely, 2^999982234217 is an apocalyptic number.

It is an amenable number.

999982234217 is a deficient number, since it is larger than the sum of its proper divisors (1).

999982234217 is an equidigital number, since it uses as much as digits as its factorization.

999982234217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 65.

The spelling of 999982234217 in words is "nine hundred ninety-nine billion, nine hundred eighty-two million, two hundred thirty-four thousand, two hundred seventeen".