211211111011112 has 32 divisors (see below), whose sum is σ = 405360462017280. Its totient is φ = 103116561649920.

The previous prime is 211211111011081. The next prime is 211211111011163. The reversal of 211211111011112 is 211110111112112.

It is a happy number.

It is a super-2 number, since 2×211211111011112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97290008 + ... + 99437255.

It is an arithmetic number, because the mean of its divisors is an integer number (12667514438040).

Almost surely, 2^{211211111011112} is an apocalyptic number.

It is an amenable number.

211211111011112 is a deficient number, since it is larger than the sum of its proper divisors (194149351006168).

211211111011112 is a wasteful number, since it uses less digits than its factorization.

211211111011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196730433 (or 196730429 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 211211111011112 its reverse (211110111112112), we get a palindrome (422321222123224).

The spelling of 211211111011112 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred eleven million, eleven thousand, one hundred twelve".