212910206 has 8 divisors (see below), whose sum is σ = 319428144. Its totient is φ = 106434160.

The previous prime is 212910179. The next prime is 212910209. The reversal of 212910206 is 602019212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212910209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11231 + ... + 23493.

It is an arithmetic number, because the mean of its divisors is an integer number (39928518).

Almost surely, 2^212910206 is an apocalyptic number.

212910206 is a deficient number, since it is larger than the sum of its proper divisors (106517938).

212910206 is a wasteful number, since it uses less digits than its factorization.

212910206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20946.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 212910206 is about 14591.4429032910. The cubic root of 212910206 is about 597.1253287340.

Adding to 212910206 its reverse (602019212), we get a palindrome (814929418).

The spelling of 212910206 in words is "two hundred twelve million, nine hundred ten thousand, two hundred six".