1000110021217 has 2 divisors, whose sum is σ = 1000110021218. Its totient is φ = 1000110021216.

The previous prime is 1000110021191. The next prime is 1000110021271. The reversal of 1000110021217 is 7121200110001.

Together with next prime (1000110021271) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935003905936 + 65106115281 = 966956^2 + 255159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000110021217 is a prime.

It is a super-2 number, since 2×1000110021217² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000110021217.

It is not a weakly prime, because it can be changed into another prime (1000110025217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055010608 + 500055010609.

It is an arithmetic number, because the mean of its divisors is an integer number (500055010609).

Almost surely, 2^{1000110021217} is an apocalyptic number.

It is an amenable number.

1000110021217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000110021217 is an equidigital number, since it uses as much as digits as its factorization.

1000110021217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 1000110021217 its reverse (7121200110001), we get a palindrome (8121310131218).

The spelling of 1000110021217 in words is "one trillion, one hundred ten million, twenty-one thousand, two hundred seventeen".