12012201020120 has 128 divisors (see below), whose sum is σ = 32005272960000. Its totient is φ = 3970027095552.

The previous prime is 12012201020117. The next prime is 12012201020231. The reversal of 12012201020120 is 2102010221021.

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 = 12012201020095 and 12012201020104.

It is a congruent number.

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, 3831341 + ... + 6221219.

It is an arithmetic number, because the mean of its divisors is an integer number (250041195000).

Almost surely, 2^{12012201020120} is an apocalyptic number.

12012201020120 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 12012201020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16002636480000).

12012201020120 is an abundant number, since it is smaller than the sum of its proper divisors (19993071939880).

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

12012201020120 is a wasteful number, since it uses less digits than its factorization.

12012201020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390545 (or 2390541 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012201020120 its reverse (2102010221021), we get a palindrome (14114211241141).

The spelling of 12012201020120 in words is "twelve trillion, twelve billion, two hundred one million, twenty thousand, one hundred twenty".