12131330334220 has 24 divisors (see below), whose sum is σ = 25476389994384. Its totient is φ = 4852418554176.

The previous prime is 12131330334181. The next prime is 12131330334283. The reversal of 12131330334220 is 2243303313121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6220234 + ... + 7934353.

It is an arithmetic number, because the mean of its divisors is an integer number (1061516249766).

Almost surely, 2^{12131330334220} is an apocalyptic number.

12131330334220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131330334220 is an abundant number, since it is smaller than the sum of its proper divisors (13345059660164).

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

12131330334220 is a wasteful number, since it uses less digits than its factorization.

12131330334220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197449 (or 14197447 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12131330334220 its reverse (2243303313121), we get a palindrome (14374633647341).

The spelling of 12131330334220 in words is "twelve trillion, one hundred thirty-one billion, three hundred thirty million, three hundred thirty-four thousand, two hundred twenty".