12012221201111 has 8 divisors (see below), whose sum is σ = 12040459315584. Its totient is φ = 11983997728440.

The previous prime is 12012221201083. The next prime is 12012221201129. The reversal of 12012221201111 is 11110212221021.

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

It is a cyclic number.

It is not a de Polignac number, because 12012221201111 - 2¹⁴ = 12012221184727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012221201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012221251111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016845 + ... + 5300198.

It is an arithmetic number, because the mean of its divisors is an integer number (1505057414448).

Almost surely, 2^{12012221201111} is an apocalyptic number.

12012221201111 is a deficient number, since it is larger than the sum of its proper divisors (28238114473).

12012221201111 is an equidigital number, since it uses as much as digits as its factorization.

12012221201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320901.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12012221201111 its reverse (11110212221021), we get a palindrome (23122433422132).

The spelling of 12012221201111 in words is "twelve trillion, twelve billion, two hundred twenty-one million, two hundred one thousand, one hundred eleven".