12330021220 has 48 divisors (see below), whose sum is σ = 29158166016. Its totient is φ = 4339008000.

The previous prime is 12330021211. The next prime is 12330021247. The reversal of 12330021220 is 2212003321.

It is a junction number, because it is equal to n+sod(n) for n = 12330021194 and 12330021203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897141 + ... + 910780.

It is an arithmetic number, because the mean of its divisors is an integer number (607461792).

Almost surely, 2^12330021220 is an apocalyptic number.

12330021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12330021220 is an abundant number, since it is smaller than the sum of its proper divisors (16828144796).

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

12330021220 is a wasteful number, since it uses less digits than its factorization.

12330021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807972 (or 1807970 counting only the distinct ones).

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

Adding to 12330021220 its reverse (2212003321), we get a palindrome (14542024541).

The spelling of 12330021220 in words is "twelve billion, three hundred thirty million, twenty-one thousand, two hundred twenty".