100000122217 has 2 divisors, whose sum is σ = 100000122218. Its totient is φ = 100000122216.

The previous prime is 100000122197. The next prime is 100000122239. The reversal of 100000122217 is 712221000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99840832576 + 159289641 = 315976^2 + 12621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000122217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100000122217.

It is not a weakly prime, because it can be changed into another prime (100000120217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000061108 + 50000061109.

It is an arithmetic number, because the mean of its divisors is an integer number (50000061109).

Almost surely, 2^100000122217 is an apocalyptic number.

It is an amenable number.

100000122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000122217 is an equidigital number, since it uses as much as digits as its factorization.

100000122217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 100000122217 its reverse (712221000001), we get a palindrome (812221122218).

The spelling of 100000122217 in words is "one hundred billion, one hundred twenty-two thousand, two hundred seventeen".