12002110020 has 72 divisors (see below), whose sum is σ = 36759917376. Its totient is φ = 3169484352.

The previous prime is 12002109979. The next prime is 12002110039. The reversal of 12002110020 is 2001120021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12002109984 and 12002110011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305142 + ... + 342221.

It is an arithmetic number, because the mean of its divisors is an integer number (510554408).

Almost surely, 2^12002110020 is an apocalyptic number.

12002110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002110020 is an abundant number, since it is smaller than the sum of its proper divisors (24757807356).

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

12002110020 is a wasteful number, since it uses less digits than its factorization.

12002110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647481 (or 647476 counting only the distinct ones).

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

Adding to 12002110020 its reverse (2001120021), we get a palindrome (14003230041).

The spelling of 12002110020 in words is "twelve billion, two million, one hundred ten thousand, twenty".