206206222 has 16 divisors (see below), whose sum is σ = 312404400. Its totient is φ = 102075840.

The previous prime is 206206219. The next prime is 206206267. The reversal of 206206222 is 222602602.

It is a junction number, because it is equal to n+sod(n) for n = 206206193 and 206206202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 127354 + ... + 128962.

It is an arithmetic number, because the mean of its divisors is an integer number (19525275).

Almost surely, 2^206206222 is an apocalyptic number.

206206222 is a deficient number, since it is larger than the sum of its proper divisors (106198178).

206206222 is a wasteful number, since it uses less digits than its factorization.

206206222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206206222 is about 14359.8823811339. The cubic root of 206206222 is about 590.7910694772.

Adding to 206206222 its reverse (222602602), we get a palindrome (428808824).

The spelling of 206206222 in words is "two hundred six million, two hundred six thousand, two hundred twenty-two".