211060081 has 4 divisors (see below), whose sum is σ = 213109312. Its totient is φ = 209010852.

The previous prime is 211060063. The next prime is 211060093. The reversal of 211060081 is 180060112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211060081 is a prime.

It is a super-2 number, since 2×211060081² = 89092715583453122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211060001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024461 + ... + 1024666.

It is an arithmetic number, because the mean of its divisors is an integer number (53277328).

Almost surely, 2^211060081 is an apocalyptic number.

It is an amenable number.

211060081 is a deficient number, since it is larger than the sum of its proper divisors (2049231).

211060081 is a wasteful number, since it uses less digits than its factorization.

211060081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049230.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 211060081 is about 14527.9069724444. The cubic root of 211060081 is about 595.3906819119.

The spelling of 211060081 in words is "two hundred eleven million, sixty thousand, eighty-one".