12210321003320 has 32 divisors (see below), whose sum is σ = 29970787918320. Its totient is φ = 4440116728320.

The previous prime is 12210321003313. The next prime is 12210321003323. The reversal of 12210321003320 is 2330012301221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12210321003292 and 12210321003301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210321003323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13875364337 + ... + 13875365216.

Almost surely, 2^{12210321003320} is an apocalyptic number.

12210321003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210321003320 is an abundant number, since it is smaller than the sum of its proper divisors (17760466915000).

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

12210321003320 is a wasteful number, since it uses less digits than its factorization.

12210321003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750729575 (or 27750729571 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12210321003320 its reverse (2330012301221), we get a palindrome (14540333304541).

The spelling of 12210321003320 in words is "twelve trillion, two hundred ten billion, three hundred twenty-one million, three thousand, three hundred twenty".