212011206 has 32 divisors (see below), whose sum is σ = 465696000. Its totient is φ = 63811680.

The previous prime is 212011193. The next prime is 212011207. The reversal of 212011206 is 602110212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (14553000).

Almost surely, 2^212011206 is an apocalyptic number.

212011206 is an abundant number, since it is smaller than the sum of its proper divisors (253684794).

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

212011206 is a wasteful number, since it uses less digits than its factorization.

212011206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21724.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 212011206 is about 14560.6045890959. The cubic root of 212011206 is about 596.2837016230.

Adding to 212011206 its reverse (602110212), we get a palindrome (814121418).

The spelling of 212011206 in words is "two hundred twelve million, eleven thousand, two hundred six".