12012002002 has 64 divisors (see below), whose sum is σ = 24685920000.
Its totient is φ = 4319965440.
The previous prime is 12012001999. The next prime is 12012002021. The reversal of 12012002002 is 20020021021.
It is a self number, because there is not a number n which added to its sum of digits gives 12012002002.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36874 + ... + 159322.
It is an arithmetic number, because the mean of its divisors is an integer number (385717500).
Almost surely, 212012002002 is an apocalyptic number.
12012002002 is an abundant number, since it is smaller than the sum of its proper divisors (12673917998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12012002002 is a wasteful number, since it uses less digits than its factorization.
12012002002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122496 (or 122482 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 12012002002 its reverse (20020021021), we get a palindrome (32032023023).
The spelling of 12012002002 in words is "twelve billion, twelve million, two thousand, two".