211672171171 has 8 divisors (see below), whose sum is σ = 223062195744. Its totient is φ = 200464387200.

The previous prime is 211672171163. The next prime is 211672171187. The reversal of 211672171171 is 171171276112.

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

It is a cyclic number.

It is not a de Polignac number, because 211672171171 - 2³ = 211672171163 is a prime.

It is a super-2 number, since 2×211672171171² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211672171171.

It is not an unprimeable number, because it can be changed into a prime (211672171141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45557766 + ... + 45562411.

It is an arithmetic number, because the mean of its divisors is an integer number (27882774468).

Almost surely, 2^211672171171 is an apocalyptic number.

211672171171 is a deficient number, since it is larger than the sum of its proper divisors (11390024573).

211672171171 is a wasteful number, since it uses less digits than its factorization.

211672171171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91120301.

The product of its digits is 8232, while the sum is 37.

The spelling of 211672171171 in words is "two hundred eleven billion, six hundred seventy-two million, one hundred seventy-one thousand, one hundred seventy-one".