12303221123220 has 96 divisors (see below), whose sum is σ = 35046112752000. Its totient is φ = 3224034852864.

The previous prime is 12303221123209. The next prime is 12303221123233. The reversal of 12303221123220 is 2232112230321.

It is a congruent number.

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, 8751756 + ... + 10059804.

It is an arithmetic number, because the mean of its divisors is an integer number (365063674500).

Almost surely, 2^{12303221123220} is an apocalyptic number.

12303221123220 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 12303221123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17523056376000).

12303221123220 is an abundant number, since it is smaller than the sum of its proper divisors (22742891628780).

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

12303221123220 is a wasteful number, since it uses less digits than its factorization.

12303221123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310777 (or 1310775 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12303221123220 its reverse (2232112230321), we get a palindrome (14535333353541).

The spelling of 12303221123220 in words is "twelve trillion, three hundred three billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred twenty".