211011201111 has 8 divisors (see below), whose sum is σ = 283929445360. Its totient is φ = 139383545472.

The previous prime is 211011201061. The next prime is 211011201119. The reversal of 211011201111 is 111102110112.

211011201111 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 not a de Polignac number, because 211011201111 - 2¹⁰ = 211011200087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011201119) 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, 322646770 + ... + 322647423.

It is an arithmetic number, because the mean of its divisors is an integer number (35491180670).

Almost surely, 2^211011201111 is an apocalyptic number.

211011201111 is a deficient number, since it is larger than the sum of its proper divisors (72918244249).

211011201111 is a wasteful number, since it uses less digits than its factorization.

211011201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645294305.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 211011201111 its reverse (111102110112), we get a palindrome (322113311223).

Subtracting from 211011201111 its reverse (111102110112), we obtain a palindrome (99909090999).

The spelling of 211011201111 in words is "two hundred eleven billion, eleven million, two hundred one thousand, one hundred eleven".