206231212 has 12 divisors (see below), whose sum is σ = 393714216. Its totient is φ = 93741440.

The previous prime is 206231203. The next prime is 206231213. The reversal of 206231212 is 212132602.

206231212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 206231212.

It is not an unprimeable number, because it can be changed into a prime (206231213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343493 + ... + 2343580.

It is an arithmetic number, because the mean of its divisors is an integer number (32809518).

Almost surely, 2^206231212 is an apocalyptic number.

206231212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206231212 is a deficient number, since it is larger than the sum of its proper divisors (187483004).

206231212 is a wasteful number, since it uses less digits than its factorization.

206231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687088 (or 4687086 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 206231212 is about 14360.7524872480. The cubic root of 206231212 is about 590.8149343770.

Adding to 206231212 its reverse (212132602), we get a palindrome (418363814).

The spelling of 206231212 in words is "two hundred six million, two hundred thirty-one thousand, two hundred twelve".