12102201220 has 24 divisors (see below), whose sum is σ = 26005662144. Its totient is φ = 4728301536.

The previous prime is 12102201211. The next prime is 12102201227. The reversal of 12102201220 is 2210220121.

It is a happy number.

12102201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12102201220.

It is not an unprimeable number, because it can be changed into a prime (12102201227) 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 7 ways as a sum of consecutive naturals, for example, 7035304 + ... + 7037023.

It is an arithmetic number, because the mean of its divisors is an integer number (1083569256).

Almost surely, 2^12102201220 is an apocalyptic number.

12102201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102201220 is an abundant number, since it is smaller than the sum of its proper divisors (13903460924).

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

12102201220 is a wasteful number, since it uses less digits than its factorization.

12102201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14072379 (or 14072377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12102201220 its reverse (2210220121), we get a palindrome (14312421341).

The spelling of 12102201220 in words is "twelve billion, one hundred two million, two hundred one thousand, two hundred twenty".