12012310220 has 12 divisors (see below), whose sum is σ = 25225851504. Its totient is φ = 4804924080.

The previous prime is 12012310217. The next prime is 12012310237. The reversal of 12012310220 is 2201321021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012310195 and 12012310204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300307736 + ... + 300307775.

It is an arithmetic number, because the mean of its divisors is an integer number (2102154292).

Almost surely, 2^12012310220 is an apocalyptic number.

12012310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012310220 is an abundant number, since it is smaller than the sum of its proper divisors (13213541284).

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

12012310220 is a wasteful number, since it uses less digits than its factorization.

12012310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600615520 (or 600615518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12012310220 its reverse (2201321021), we get a palindrome (14213631241).

The spelling of 12012310220 in words is "twelve billion, twelve million, three hundred ten thousand, two hundred twenty".