211000211111 has 8 divisors (see below), whose sum is σ = 222895902000. Its totient is φ = 199183561920.

The previous prime is 211000211099. The next prime is 211000211131. The reversal of 211000211111 is 111112000112.

211000211111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-211000211111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211000211092 and 211000211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000211131) 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, 19754936 + ... + 19765613.

It is an arithmetic number, because the mean of its divisors is an integer number (27861987750).

Almost surely, 2^211000211111 is an apocalyptic number.

211000211111 is a deficient number, since it is larger than the sum of its proper divisors (11895690889).

211000211111 is a wasteful number, since it uses less digits than its factorization.

211000211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39520849.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211000211111 its reverse (111112000112), we get a palindrome (322112211223).

The spelling of 211000211111 in words is "two hundred eleven billion, two hundred eleven thousand, one hundred eleven".