12012120211222 has 4 divisors (see below), whose sum is σ = 18018180316836. Its totient is φ = 6006060105610.

The previous prime is 12012120211211. The next prime is 12012120211261. The reversal of 12012120211222 is 22211202121021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12012120211222.

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 as a sum of consecutive naturals, namely, 3003030052804 + ... + 3003030052807.

It is an arithmetic number, because the mean of its divisors is an integer number (4504545079209).

Almost surely, 2^{12012120211222} is an apocalyptic number.

12012120211222 is a deficient number, since it is larger than the sum of its proper divisors (6006060105614).

12012120211222 is an equidigital number, since it uses as much as digits as its factorization.

12012120211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006060105613.

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

Adding to 12012120211222 its reverse (22211202121021), we get a palindrome (34223322332243).

The spelling of 12012120211222 in words is "twelve trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-two".