120020112120 has 128 divisors (see below), whose sum is σ = 372066877440. Its totient is φ = 30940293120.

The previous prime is 120020112083. The next prime is 120020112127. The reversal of 120020112120 is 21211020021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120020112096 and 120020112105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020112127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3617929 + ... + 3650951.

It is an arithmetic number, because the mean of its divisors is an integer number (2906772480).

Almost surely, 2^120020112120 is an apocalyptic number.

120020112120 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 120020112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186033438720).

120020112120 is an abundant number, since it is smaller than the sum of its proper divisors (252046765320).

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

120020112120 is a wasteful number, since it uses less digits than its factorization.

120020112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34045 (or 34041 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120020112120 its reverse (21211020021), we get a palindrome (141231132141).

The spelling of 120020112120 in words is "one hundred twenty billion, twenty million, one hundred twelve thousand, one hundred twenty".