12012330220 has 96 divisors (see below), whose sum is σ = 29688192576. Its totient is φ = 4033536000.

The previous prime is 12012330199. The next prime is 12012330247. The reversal of 12012330220 is 2203321021.

It is a junction number, because it is equal to n+sod(n) for n = 12012330194 and 12012330203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167920 + ... + 228520.

It is an arithmetic number, because the mean of its divisors is an integer number (309252006).

Almost surely, 2^12012330220 is an apocalyptic number.

12012330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14844096288).

12012330220 is an abundant number, since it is smaller than the sum of its proper divisors (17675862356).

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

12012330220 is a wasteful number, since it uses less digits than its factorization.

12012330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60691 (or 60689 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12012330220 its reverse (2203321021), we get a palindrome (14215651241).

The spelling of 12012330220 in words is "twelve billion, twelve million, three hundred thirty thousand, two hundred twenty".