211011210211111 has 8 divisors (see below), whose sum is σ = 211525708495248. Its totient is φ = 210497131416000.

The previous prime is 211011210211099. The next prime is 211011210211129. The reversal of 211011210211111 is 111112012110112.

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 211011210211111 - 2²⁹ = 211010673340199 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 (211011210511111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103864980 + ... + 105877081.

It is an arithmetic number, because the mean of its divisors is an integer number (26440713561906).

Almost surely, 2^{211011210211111} is an apocalyptic number.

211011210211111 is a deficient number, since it is larger than the sum of its proper divisors (514498284137).

211011210211111 is a wasteful number, since it uses less digits than its factorization.

211011210211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209744513.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 211011210211111 its reverse (111112012110112), we get a palindrome (322123222321223).

The spelling of 211011210211111 in words is "two hundred eleven trillion, eleven billion, two hundred ten million, two hundred eleven thousand, one hundred eleven".