12012102110120 has 128 divisors (see below), whose sum is σ = 31544095472640. Its totient is φ = 4031351301120.

The previous prime is 12012102110119. The next prime is 12012102110123. The reversal of 12012102110120 is 2101120121021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12012102110095 and 12012102110104.

It is not an unprimeable number, because it can be changed into a prime (12012102110123) 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, 5457014 + ... + 7335066.

It is an arithmetic number, because the mean of its divisors is an integer number (246438245880).

Almost surely, 2^{12012102110120} is an apocalyptic number.

12012102110120 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 12012102110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15772047736320).

12012102110120 is an abundant number, since it is smaller than the sum of its proper divisors (19531993362520).

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

12012102110120 is a wasteful number, since it uses less digits than its factorization.

12012102110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878555 (or 1878551 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12012102110120 its reverse (2101120121021), we get a palindrome (14113222231141).

The spelling of 12012102110120 in words is "twelve trillion, twelve billion, one hundred two million, one hundred ten thousand, one hundred twenty".