211868112 has 20 divisors (see below), whose sum is σ = 547326080. Its totient is φ = 70622688.

The previous prime is 211868077. The next prime is 211868123.

It is a happy number.

211868112 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 211868112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206912 + ... + 2207007.

It is an arithmetic number, because the mean of its divisors is an integer number (27366304).

Almost surely, 2^211868112 is an apocalyptic number.

It is an amenable number.

211868112 is an abundant number, since it is smaller than the sum of its proper divisors (335457968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211868112 is a wasteful number, since it uses less digits than its factorization.

211868112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413930 (or 4413924 counting only the distinct ones).

The product of its digits is 1536, while the sum is 30.

The square root of 211868112 is about 14555.6900214315. The cubic root of 211868112 is about 596.1495203140.

The spelling of 211868112 in words is "two hundred eleven million, eight hundred sixty-eight thousand, one hundred twelve".