211711062021217 has 8 divisors (see below), whose sum is σ = 244543258805472. Its totient is φ = 181143154670400.

The previous prime is 211711062021187. The next prime is 211711062021247. The reversal of 211711062021217 is 712120260117112.

It is an interprime number because it is at equal distance from previous prime (211711062021187) and next prime (211711062021247).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211711062021217 is a prime.

It is a super-2 number, since 2×211711062021217² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211711062021247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566072358159 + ... + 566072358532.

It is an arithmetic number, because the mean of its divisors is an integer number (30567907350684).

Almost surely, 2^{211711062021217} is an apocalyptic number.

It is an amenable number.

211711062021217 is a deficient number, since it is larger than the sum of its proper divisors (32832196784255).

211711062021217 is a wasteful number, since it uses less digits than its factorization.

211711062021217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132144716719.

The product of its (nonzero) digits is 4704, while the sum is 34.

The spelling of 211711062021217 in words is "two hundred eleven trillion, seven hundred eleven billion, sixty-two million, twenty-one thousand, two hundred seventeen".