120131201220 has 24 divisors (see below), whose sum is σ = 336367363584. Its totient is φ = 32034986976.

The previous prime is 120131201173. The next prime is 120131201221. The reversal of 120131201220 is 22102131021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120131201220.

It is not an unprimeable number, because it can be changed into a prime (120131201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001093284 + ... + 1001093403.

It is an arithmetic number, because the mean of its divisors is an integer number (14015306816).

Almost surely, 2^120131201220 is an apocalyptic number.

120131201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120131201220 is an abundant number, since it is smaller than the sum of its proper divisors (216236162364).

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

120131201220 is a wasteful number, since it uses less digits than its factorization.

120131201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002186699 (or 2002186697 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120131201220 its reverse (22102131021), we get a palindrome (142233332241).

The spelling of 120131201220 in words is "one hundred twenty billion, one hundred thirty-one million, two hundred one thousand, two hundred twenty".