12030231220 has 48 divisors (see below), whose sum is σ = 30570946560. Its totient is φ = 3882023424.

The previous prime is 12030231209. The next prime is 12030231251. The reversal of 12030231220 is 2213203021.

It is a junction number, because it is equal to n+sod(n) for n = 12030231194 and 12030231203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524980 + ... + 2529739.

It is an arithmetic number, because the mean of its divisors is an integer number (636894720).

Almost surely, 2^12030231220 is an apocalyptic number.

12030231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030231220 is an abundant number, since it is smaller than the sum of its proper divisors (18540715340).

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

12030231220 is a wasteful number, since it uses less digits than its factorization.

12030231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054752 (or 5054750 counting only the distinct ones).

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

Adding to 12030231220 its reverse (2213203021), we get a palindrome (14243434241).

The spelling of 12030231220 in words is "twelve billion, thirty million, two hundred thirty-one thousand, two hundred twenty".