12011001221222 has 8 divisors (see below), whose sum is σ = 18016593091200. Its totient is φ = 6005470190824.

The previous prime is 12011001221111. The next prime is 12011001221227. The reversal of 12011001221222 is 22212210011021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12011001221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011001221227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14713097 + ... + 15507972.

It is an arithmetic number, because the mean of its divisors is an integer number (2252074136400).

Almost surely, 2^{12011001221222} is an apocalyptic number.

12011001221222 is a deficient number, since it is larger than the sum of its proper divisors (6005591869978).

12011001221222 is a wasteful number, since it uses less digits than its factorization.

12011001221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30419790.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12011001221222 its reverse (22212210011021), we get a palindrome (34223211232243).

The spelling of 12011001221222 in words is "twelve trillion, eleven billion, one million, two hundred twenty-one thousand, two hundred twenty-two".