12001222321102 has 64 divisors (see below), whose sum is σ = 22168373230080. Its totient is φ = 4757555367936.

The previous prime is 12001222321057. The next prime is 12001222321169. The reversal of 12001222321102 is 20112322210021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12001222321102.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 30193318 + ... + 30588214.

It is an arithmetic number, because the mean of its divisors is an integer number (346380831720).

Almost surely, 2^{12001222321102} is an apocalyptic number.

12001222321102 is a deficient number, since it is larger than the sum of its proper divisors (10167150908978).

12001222321102 is a wasteful number, since it uses less digits than its factorization.

12001222321102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397625.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12001222321102 its reverse (20112322210021), we get a palindrome (32113544531123).

The spelling of 12001222321102 in words is "twelve trillion, one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred two".