120012120021120 has 256 divisors, whose sum is σ = 389780947843200. Its totient is φ = 31397415256064.

The previous prime is 120012120021109. The next prime is 120012120021139. The reversal of 120012120021120 is 21120021210021.

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 120012120021120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2326106044 + ... + 2326157636.

Almost surely, 2^{120012120021120} is an apocalyptic number.

120012120021120 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 120012120021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194890473921600).

120012120021120 is an abundant number, since it is smaller than the sum of its proper divisors (269768827822080).

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

120012120021120 is a wasteful number, since it uses less digits than its factorization.

120012120021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74527 (or 74515 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120012120021120 its reverse (21120021210021), we get a palindrome (141132141231141).

The spelling of 120012120021120 in words is "one hundred twenty trillion, twelve billion, one hundred twenty million, twenty-one thousand, one hundred twenty".