12010020120 has 256 divisors, whose sum is σ = 46869580800. Its totient is φ = 2678123520.

The previous prime is 12010020119. The next prime is 12010020131. The reversal of 12010020120 is 2102001021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290587 + ... + 329333.

It is an arithmetic number, because the mean of its divisors is an integer number (183084300).

Almost surely, 2^12010020120 is an apocalyptic number.

12010020120 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 12010020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23434790400).

12010020120 is an abundant number, since it is smaller than the sum of its proper divisors (34859560680).

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

12010020120 is a wasteful number, since it uses less digits than its factorization.

12010020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38815 (or 38805 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12010020120 its reverse (2102001021), we get a palindrome (14112021141).

The spelling of 12010020120 in words is "twelve billion, ten million, twenty thousand, one hundred twenty".