12231021320220 has 96 divisors (see below), whose sum is σ = 34278668424000. Its totient is φ = 3258577373184.

The previous prime is 12231021320209. The next prime is 12231021320251. The reversal of 12231021320220 is 2202312013221.

12231021320220 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445577056 + ... + 445604504.

It is an arithmetic number, because the mean of its divisors is an integer number (357069462750).

Almost surely, 2^{12231021320220} is an apocalyptic number.

12231021320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231021320220 is an abundant number, since it is smaller than the sum of its proper divisors (22047647103780).

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

12231021320220 is a wasteful number, since it uses less digits than its factorization.

12231021320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34087 (or 34085 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12231021320220 its reverse (2202312013221), we get a palindrome (14433333333441).

The spelling of 12231021320220 in words is "twelve trillion, two hundred thirty-one billion, twenty-one million, three hundred twenty thousand, two hundred twenty".