12220023231220 has 48 divisors (see below), whose sum is σ = 29329575504768. Its totient is φ = 4189505143680.

The previous prime is 12220023231137. The next prime is 12220023231253. The reversal of 12220023231220 is 2213232002221.

It is a junction number, because it is equal to n+sod(n) for n = 12220023231191 and 12220023231200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461499 + ... + 4965181.

It is an arithmetic number, because the mean of its divisors is an integer number (611032823016).

Almost surely, 2^{12220023231220} is an apocalyptic number.

12220023231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220023231220 is an abundant number, since it is smaller than the sum of its proper divisors (17109552273548).

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

12220023231220 is a wasteful number, since it uses less digits than its factorization.

12220023231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523080 (or 4523078 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12220023231220 its reverse (2213232002221), we get a palindrome (14433255233441).

The spelling of 12220023231220 in words is "twelve trillion, two hundred twenty billion, twenty-three million, two hundred thirty-one thousand, two hundred twenty".