210112117 has 2 divisors, whose sum is σ = 210112118. Its totient is φ = 210112116.

The previous prime is 210112109. The next prime is 210112139. The reversal of 210112117 is 711211012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188265841 + 21846276 = 13721^2 + 4674^2 .

It is a cyclic number.

It is not a de Polignac number, because 210112117 - 2³ = 210112109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210112117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210412117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105056058 + 105056059.

It is an arithmetic number, because the mean of its divisors is an integer number (105056059).

Almost surely, 2^210112117 is an apocalyptic number.

It is an amenable number.

210112117 is a deficient number, since it is larger than the sum of its proper divisors (1).

210112117 is an equidigital number, since it uses as much as digits as its factorization.

210112117 is an odious number, because the sum of its binary digits is odd.

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

The square root of 210112117 is about 14495.2446340170. The cubic root of 210112117 is about 594.4979565676.

Adding to 210112117 its reverse (711211012), we get a palindrome (921323129).

The spelling of 210112117 in words is "two hundred ten million, one hundred twelve thousand, one hundred seventeen".