12012221221102 has 16 divisors (see below), whose sum is σ = 18803917590912. Its totient is φ = 5744309247160.

The previous prime is 12012221221037. The next prime is 12012221221153. The reversal of 12012221221102 is 20112212221021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012221221102.

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 7 ways as a sum of consecutive naturals, for example, 14737924 + ... + 15531607.

It is an arithmetic number, because the mean of its divisors is an integer number (1175244849432).

Almost surely, 2^{12012221221102} is an apocalyptic number.

12012221221102 is a deficient number, since it is larger than the sum of its proper divisors (6791696369810).

12012221221102 is a wasteful number, since it uses less digits than its factorization.

12012221221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30278183.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12012221221102 its reverse (20112212221021), we get a palindrome (32124433442123).

The spelling of 12012221221102 in words is "twelve trillion, twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred two".