12001001222 has 8 divisors (see below), whose sum is σ = 20573144976. Its totient is φ = 5143286232.

The previous prime is 12001001149. The next prime is 12001001239. The reversal of 12001001222 is 22210010021.

It is a happy number.

12001001222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 428607173 + ... + 428607200.

It is an arithmetic number, because the mean of its divisors is an integer number (2571643122).

Almost surely, 2^12001001222 is an apocalyptic number.

12001001222 is a deficient number, since it is larger than the sum of its proper divisors (8572143754).

12001001222 is an equidigital number, since it uses as much as digits as its factorization.

12001001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857214382.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12001001222 its reverse (22210010021), we get a palindrome (34211011243).

The spelling of 12001001222 in words is "twelve billion, one million, one thousand, two hundred twenty-two".