206212271 has 4 divisors (see below), whose sum is σ = 206241000. Its totient is φ = 206183544.

The previous prime is 206212267. The next prime is 206212277. The reversal of 206212271 is 172212602.

It is a happy number.

206212271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 172212602 = 2 ⋅86106301.

It is a cyclic number.

It is not a de Polignac number, because 206212271 - 2² = 206212267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206212277) 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, 6680 + ... + 21378.

It is an arithmetic number, because the mean of its divisors is an integer number (51560250).

Almost surely, 2^206212271 is an apocalyptic number.

206212271 is a deficient number, since it is larger than the sum of its proper divisors (28729).

206212271 is a wasteful number, since it uses less digits than its factorization.

206212271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28728.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 206212271 is about 14360.0930010916. The cubic root of 206212271 is about 590.7968463159.

Adding to 206212271 its reverse (172212602), we get a palindrome (378424873).

The spelling of 206212271 in words is "two hundred six million, two hundred twelve thousand, two hundred seventy-one".