206422210 has 16 divisors (see below), whose sum is σ = 372220992. Its totient is φ = 82422000.

The previous prime is 206422189. The next prime is 206422241. The reversal of 206422210 is 12224602.

It is a super-2 number, since 2×206422210² = 85220257562568200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12366 + ... + 23785.

It is an arithmetic number, because the mean of its divisors is an integer number (23263812).

Almost surely, 2^206422210 is an apocalyptic number.

206422210 is a deficient number, since it is larger than the sum of its proper divisors (165798782).

206422210 is a wasteful number, since it uses less digits than its factorization.

206422210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36729.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 206422210 is about 14367.4009479794. The cubic root of 206422210 is about 590.9972696165.

Adding to 206422210 its reverse (12224602), we get a palindrome (218646812).

The spelling of 206422210 in words is "two hundred six million, four hundred twenty-two thousand, two hundred ten".