12001220002 has 64 divisors (see below), whose sum is σ = 20205054720. Its totient is φ = 5320111104.

The previous prime is 12001219987. The next prime is 12001220027. The reversal of 12001220002 is 20002210021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8740188 + ... + 8741560.

It is an arithmetic number, because the mean of its divisors is an integer number (315703980).

Almost surely, 2^12001220002 is an apocalyptic number.

12001220002 is a deficient number, since it is larger than the sum of its proper divisors (8203834718).

12001220002 is a wasteful number, since it uses less digits than its factorization.

12001220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12001220002 its reverse (20002210021), we get a palindrome (32003430023).

The spelling of 12001220002 in words is "twelve billion, one million, two hundred twenty thousand, two".