12001122221002 has 8 divisors (see below), whose sum is σ = 18082408369536. Its totient is φ = 5973652764492.

The previous prime is 12001122220979. The next prime is 12001122221029. The reversal of 12001122221002 is 20012222110021.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13454172448 + ... + 13454173339.

It is an arithmetic number, because the mean of its divisors is an integer number (2260301046192).

Almost surely, 2^{12001122221002} is an apocalyptic number.

12001122221002 is a deficient number, since it is larger than the sum of its proper divisors (6081286148534).

12001122221002 is a wasteful number, since it uses less digits than its factorization.

12001122221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26908346012.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12001122221002 its reverse (20012222110021), we get a palindrome (32013344331023).

The spelling of 12001122221002 in words is "twelve trillion, one billion, one hundred twenty-two million, two hundred twenty-one thousand, two".