211243235211 has 48 divisors (see below), whose sum is σ = 313594085376. Its totient is φ = 136952097408.

The previous prime is 211243235129. The next prime is 211243235219. The reversal of 211243235211 is 112532342112.

It is a happy number.

211243235211 is a `hidden beast` number, since 2 + 1 + 12 + 432 + 3 + 5 + 211 = 666.

It is not a de Polignac number, because 211243235211 - 2¹⁴ = 211243218827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211243235219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127024566 + ... + 127026228.

It is an arithmetic number, because the mean of its divisors is an integer number (6533210112).

Almost surely, 2^211243235211 is an apocalyptic number.

211243235211 is a deficient number, since it is larger than the sum of its proper divisors (102350850165).

211243235211 is a wasteful number, since it uses less digits than its factorization.

211243235211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2949 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 211243235211 its reverse (112532342112), we get a palindrome (323775577323).

The spelling of 211243235211 in words is "two hundred eleven billion, two hundred forty-three million, two hundred thirty-five thousand, two hundred eleven".