12001222002 has 96 divisors (see below), whose sum is σ = 30588917760. Its totient is φ = 3103957920.

The previous prime is 12001222001. The next prime is 12001222019. The reversal of 12001222002 is 20022210021.

12001222002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12001222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 765163 + ... + 780689.

It is an arithmetic number, because the mean of its divisors is an integer number (318634560).

Almost surely, 2^12001222002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001222002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15294458880).

12001222002 is an abundant number, since it is smaller than the sum of its proper divisors (18587695758).

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

12001222002 is a wasteful number, since it uses less digits than its factorization.

12001222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796 (or 15789 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12001222002 its reverse (20022210021), we get a palindrome (32023432023).

The spelling of 12001222002 in words is "twelve billion, one million, two hundred twenty-two thousand, two".