12010000020 has 24 divisors (see below), whose sum is σ = 33628000224. Its totient is φ = 3202666656.

The previous prime is 12009999949. The next prime is 12010000021. The reversal of 12010000020 is 2000001021.

It is a happy number.

12010000020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (6).

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

It is a junction number, because it is equal to n+sod(n) for n = 12009999963 and 12010000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100083274 + ... + 100083393.

It is an arithmetic number, because the mean of its divisors is an integer number (1401166676).

Almost surely, 2^12010000020 is an apocalyptic number.

12010000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010000020 is an abundant number, since it is smaller than the sum of its proper divisors (21618000204).

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

12010000020 is a wasteful number, since it uses less digits than its factorization.

12010000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200166679 (or 200166677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 12010000020 its reverse (2000001021), we get a palindrome (14010001041).

The spelling of 12010000020 in words is "twelve billion, ten million, twenty", and thus it is an aban number and an uban number.