12303211220 has 48 divisors (see below), whose sum is σ = 26364592128. Its totient is φ = 4821638400.

The previous prime is 12303211199. The next prime is 12303211223. The reversal of 12303211220 is 2211230321.

12303211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303211223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192557 + ... + 248363.

It is an arithmetic number, because the mean of its divisors is an integer number (549262336).

Almost surely, 2^12303211220 is an apocalyptic number.

12303211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303211220 is an abundant number, since it is smaller than the sum of its proper divisors (14061380908).

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

12303211220 is a wasteful number, since it uses less digits than its factorization.

12303211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56040 (or 56038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12303211220 its reverse (2211230321), we get a palindrome (14514441541).

The spelling of 12303211220 in words is "twelve billion, three hundred three million, two hundred eleven thousand, two hundred twenty".