211434224111 has 16 divisors (see below), whose sum is σ = 235873064448. Its totient is φ = 187875739200.

The previous prime is 211434224087. The next prime is 211434224143. The reversal of 211434224111 is 111422434112.

It is a cyclic number.

It is not a de Polignac number, because 211434224111 - 2¹⁰ = 211434223087 is a prime.

It is a super-2 number, since 2×211434224111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211434224161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124736 + ... + 662138.

It is an arithmetic number, because the mean of its divisors is an integer number (14742066528).

Almost surely, 2^211434224111 is an apocalyptic number.

211434224111 is a deficient number, since it is larger than the sum of its proper divisors (24438840337).

211434224111 is a wasteful number, since it uses less digits than its factorization.

211434224111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538222.

The product of its digits is 1536, while the sum is 26.

Adding to 211434224111 its reverse (111422434112), we get a palindrome (322856658223).

The spelling of 211434224111 in words is "two hundred eleven billion, four hundred thirty-four million, two hundred twenty-four thousand, one hundred eleven".