12001010120 has 32 divisors (see below), whose sum is σ = 29457025920. Its totient is φ = 4364003520.

The previous prime is 12001010059. The next prime is 12001010149. The reversal of 12001010120 is 2101010021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 12001010098 and 12001010107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13637072 + ... + 13637951.

It is an arithmetic number, because the mean of its divisors is an integer number (920532060).

Almost surely, 2^12001010120 is an apocalyptic number.

12001010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001010120 is an abundant number, since it is smaller than the sum of its proper divisors (17456015800).

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

12001010120 is a wasteful number, since it uses less digits than its factorization.

12001010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27275045 (or 27275041 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12001010120 its reverse (2101010021), we get a palindrome (14102020141).

Subtracting from 12001010120 its reverse (2101010021), we obtain a palindrome (9900000099).

The spelling of 12001010120 in words is "twelve billion, one million, ten thousand, one hundred twenty".