211113221032111 has 4 divisors (see below), whose sum is σ = 213050039573800. Its totient is φ = 209176402490424.

The previous prime is 211113221032093. The next prime is 211113221032151. The reversal of 211113221032111 is 111230122311112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211113221032111 - 2⁷ = 211113221031983 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 (211113221032151) 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, 968409270681 + ... + 968409270898.

It is an arithmetic number, because the mean of its divisors is an integer number (53262509893450).

Almost surely, 2^{211113221032111} is an apocalyptic number.

211113221032111 is a deficient number, since it is larger than the sum of its proper divisors (1936818541689).

211113221032111 is a wasteful number, since it uses less digits than its factorization.

211113221032111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936818541688.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 211113221032111 its reverse (111230122311112), we get a palindrome (322343343343223).

The spelling of 211113221032111 in words is "two hundred eleven trillion, one hundred thirteen billion, two hundred twenty-one million, thirty-two thousand, one hundred eleven".