12221103321111 has 16 divisors (see below), whose sum is σ = 17180965571840. Its totient is φ = 7705748635200.

The previous prime is 12221103321079. The next prime is 12221103321137. The reversal of 12221103321111 is 11112330112221.

It is not a de Polignac number, because 12221103321111 - 2⁵ = 12221103321079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221103326111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178339555 + ... + 178408068.

It is an arithmetic number, because the mean of its divisors is an integer number (1073810348240).

Almost surely, 2^{12221103321111} is an apocalyptic number.

12221103321111 is a deficient number, since it is larger than the sum of its proper divisors (4959862250729).

12221103321111 is a wasteful number, since it uses less digits than its factorization.

12221103321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356748246.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12221103321111 its reverse (11112330112221), we get a palindrome (23333433433332).

The spelling of 12221103321111 in words is "twelve trillion, two hundred twenty-one billion, one hundred three million, three hundred twenty-one thousand, one hundred eleven".