120131232012220 has 144 divisors (see below), whose sum is σ = 298524702758688. Its totient is φ = 40253877780480.

The previous prime is 120131232012203. The next prime is 120131232012227. The reversal of 120131232012220 is 22210232131021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 120131232012191 and 120131232012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120131232012227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18652972 + ... + 24252748.

It is an arithmetic number, because the mean of its divisors is an integer number (2073088213602).

Almost surely, 2^{120131232012220} is an apocalyptic number.

120131232012220 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 120131232012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149262351379344).

120131232012220 is an abundant number, since it is smaller than the sum of its proper divisors (178393470746468).

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

120131232012220 is a wasteful number, since it uses less digits than its factorization.

120131232012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600400 (or 5600385 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 120131232012220 its reverse (22210232131021), we get a palindrome (142341464143241).

The spelling of 120131232012220 in words is "one hundred twenty trillion, one hundred thirty-one billion, two hundred thirty-two million, twelve thousand, two hundred twenty".