12320210220 has 24 divisors (see below), whose sum is σ = 34496588784. Its totient is φ = 3285389376.

The previous prime is 12320210213. The next prime is 12320210237. The reversal of 12320210220 is 2201202321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12320210220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102668359 + ... + 102668478.

It is an arithmetic number, because the mean of its divisors is an integer number (1437357866).

Almost surely, 2^12320210220 is an apocalyptic number.

12320210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320210220 is an abundant number, since it is smaller than the sum of its proper divisors (22176378564).

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

12320210220 is a wasteful number, since it uses less digits than its factorization.

12320210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205336849 (or 205336847 counting only the distinct ones).

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

Adding to 12320210220 its reverse (2201202321), we get a palindrome (14521412541).

The spelling of 12320210220 in words is "twelve billion, three hundred twenty million, two hundred ten thousand, two hundred twenty".