12020011200120 has 512 divisors, whose sum is σ = 47664613140480. Its totient is φ = 2347678433280.

The previous prime is 12020011200101. The next prime is 12020011200179. The reversal of 12020011200120 is 2100211002021.

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 = 12020011200096 and 12020011200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 121373344 + ... + 121472336.

It is an arithmetic number, because the mean of its divisors is an integer number (93094947540).

Almost surely, 2^{12020011200120} is an apocalyptic number.

12020011200120 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 12020011200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23832306570240).

12020011200120 is an abundant number, since it is smaller than the sum of its proper divisors (35644601940360).

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

12020011200120 is a wasteful number, since it uses less digits than its factorization.

12020011200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99815 (or 99811 counting only the distinct ones).

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

Adding to 12020011200120 its reverse (2100211002021), we get a palindrome (14120222202141).

The spelling of 12020011200120 in words is "twelve trillion, twenty billion, eleven million, two hundred thousand, one hundred twenty".