120011131220 has 24 divisors (see below), whose sum is σ = 257884386144. Its totient is φ = 46888069536.

The previous prime is 120011131183. The next prime is 120011131223. The reversal of 120011131220 is 22131110021.

120011131220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 120011131195 and 120011131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011131223) 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, 69773054 + ... + 69774773.

It is an arithmetic number, because the mean of its divisors is an integer number (10745182756).

Almost surely, 2^120011131220 is an apocalyptic number.

120011131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120011131220 is an abundant number, since it is smaller than the sum of its proper divisors (137873254924).

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

120011131220 is a wasteful number, since it uses less digits than its factorization.

120011131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139547879 (or 139547877 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120011131220 its reverse (22131110021), we get a palindrome (142142241241).

The spelling of 120011131220 in words is "one hundred twenty billion, eleven million, one hundred thirty-one thousand, two hundred twenty".