12220210208 has 12 divisors (see below), whose sum is σ = 24058538910. Its totient is φ = 6110105088.

The previous prime is 12220210207. The next prime is 12220210229. The reversal of 12220210208 is 80201202221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8307957904 + 3912252304 = 91148^2 + 62548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12220210208.

It is not an unprimeable number, because it can be changed into a prime (12220210207) by changing a digit.

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 as a sum of consecutive naturals, namely, 190940753 + ... + 190940816.

Almost surely, 2^12220210208 is an apocalyptic number.

It is an amenable number.

12220210208 is a deficient number, since it is larger than the sum of its proper divisors (11838328702).

12220210208 is an equidigital number, since it uses as much as digits as its factorization.

12220210208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381881579 (or 381881571 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12220210208 its reverse (80201202221), we get a palindrome (92421412429).

The spelling of 12220210208 in words is "twelve billion, two hundred twenty million, two hundred ten thousand, two hundred eight".