201102112217 has 2 divisors, whose sum is σ = 201102112218. Its totient is φ = 201102112216.

The previous prime is 201102112213. The next prime is 201102112223. The reversal of 201102112217 is 712211201102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199555184656 + 1546927561 = 446716^2 + 39331^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102112217 - 2² = 201102112213 is a prime.

It is not a weakly prime, because it can be changed into another prime (201102112213) 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, 100551056108 + 100551056109.

It is an arithmetic number, because the mean of its divisors is an integer number (100551056109).

Almost surely, 2^201102112217 is an apocalyptic number.

It is an amenable number.

201102112217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201102112217 is an equidigital number, since it uses as much as digits as its factorization.

201102112217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 201102112217 its reverse (712211201102), we get a palindrome (913313313319).

The spelling of 201102112217 in words is "two hundred one billion, one hundred two million, one hundred twelve thousand, two hundred seventeen".