211002022117 has 2 divisors, whose sum is σ = 211002022118. Its totient is φ = 211002022116.

The previous prime is 211002022097. The next prime is 211002022151. The reversal of 211002022117 is 711220200112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112572999361 + 98429022756 = 335519^2 + 313734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211002022117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211002022094 and 211002022103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211002022717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105501011058 + 105501011059.

It is an arithmetic number, because the mean of its divisors is an integer number (105501011059).

Almost surely, 2^211002022117 is an apocalyptic number.

It is an amenable number.

211002022117 is a deficient number, since it is larger than the sum of its proper divisors (1).

211002022117 is an equidigital number, since it uses as much as digits as its factorization.

211002022117 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 19.

Adding to 211002022117 its reverse (711220200112), we get a palindrome (922222222229).

The spelling of 211002022117 in words is "two hundred eleven billion, two million, twenty-two thousand, one hundred seventeen".