211838212 has 24 divisors (see below), whose sum is σ = 379330560. Its totient is φ = 103466880.

The previous prime is 211838197. The next prime is 211838219. The reversal of 211838212 is 212838112.

It is not an unprimeable number, because it can be changed into a prime (211838219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164989 + ... + 166267.

It is an arithmetic number, because the mean of its divisors is an integer number (15805440).

Almost surely, 2^211838212 is an apocalyptic number.

It is an amenable number.

211838212 is a deficient number, since it is larger than the sum of its proper divisors (167492348).

211838212 is a wasteful number, since it uses less digits than its factorization.

211838212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 211838212 is about 14554.6628954435. The cubic root of 211838212 is about 596.1214750219.

The spelling of 211838212 in words is "two hundred eleven million, eight hundred thirty-eight thousand, two hundred twelve".