12220206 has 8 divisors (see below), whose sum is σ = 24440424. Its totient is φ = 4073400.

The previous prime is 12220193. The next prime is 12220217. The reversal of 12220206 is 60202221.

It is a sphenic number, since it is the product of 3 distinct primes.

12220206 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018345 + ... + 1018356.

It is an arithmetic number, because the mean of its divisors is an integer number (3055053).

Almost surely, 2^12220206 is an apocalyptic number.

12220206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12220206 is a wasteful number, since it uses less digits than its factorization.

12220206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036706.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12220206 is about 3495.7411231383. The cubic root of 12220206 is about 230.3347739867.

Adding to 12220206 its reverse (60202221), we get a palindrome (72422427).

The spelling of 12220206 in words is "twelve million, two hundred twenty thousand, two hundred six".