12212210208 has 96 divisors (see below), whose sum is σ = 35006791680. Its totient is φ = 3696917760.

The previous prime is 12212210207. The next prime is 12212210221. The reversal of 12212210208 is 80201221221.

12212210208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (12212210207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142553 + ... + 1153191.

It is an arithmetic number, because the mean of its divisors is an integer number (364654080).

Almost surely, 2^12212210208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212210208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17503395840).

12212210208 is an abundant number, since it is smaller than the sum of its proper divisors (22794581472).

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

12212210208 is a wasteful number, since it uses less digits than its factorization.

12212210208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750 (or 11742 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12212210208 its reverse (80201221221), we get a palindrome (92413431429).

The spelling of 12212210208 in words is "twelve billion, two hundred twelve million, two hundred ten thousand, two hundred eight".