12221131210311 has 8 divisors (see below), whose sum is σ = 16330497724144. Its totient is φ = 8129592751680.

The previous prime is 12221131210297. The next prime is 12221131210339. The reversal of 12221131210311 is 11301213112221.

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

It is not a de Polignac number, because 12221131210311 - 2²⁶ = 12221064101447 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 (12221131215311) 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, 4457012200 + ... + 4457014941.

It is an arithmetic number, because the mean of its divisors is an integer number (2041312215518).

Almost surely, 2^{12221131210311} is an apocalyptic number.

12221131210311 is a deficient number, since it is larger than the sum of its proper divisors (4109366513833).

12221131210311 is an equidigital number, since it uses as much as digits as its factorization.

12221131210311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8914027601.

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

Adding to 12221131210311 its reverse (11301213112221), we get a palindrome (23522344322532).

The spelling of 12221131210311 in words is "twelve trillion, two hundred twenty-one billion, one hundred thirty-one million, two hundred ten thousand, three hundred eleven".