12001000002 has 8 divisors (see below), whose sum is σ = 24002000016. Its totient is φ = 4000333332.

The previous prime is 12000999973. The next prime is 12001000003. The reversal of 12001000002 is 20000010021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12001000002 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (6), and also a Moran number because the ratio is a prime number: 2000166667 = 12001000002 / (1 + 2 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (12001000003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000083328 + ... + 1000083339.

It is an arithmetic number, because the mean of its divisors is an integer number (3000250002).

Almost surely, 2^12001000002 is an apocalyptic number.

12001000002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12001000002 is a wasteful number, since it uses less digits than its factorization.

12001000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000166672.

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

Adding to 12001000002 its reverse (20000010021), we get a palindrome (32001010023).

The spelling of 12001000002 in words is "twelve billion, one million, two", and thus it is an aban number and an uban number.