12222050031311 has 4 divisors (see below), whose sum is σ = 12222057871992. Its totient is φ = 12222042190632.

The previous prime is 12222050031173. The next prime is 12222050031341. The reversal of 12222050031311 is 11313005022221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222050031311 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 (12222050031341) 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, 700805 + ... + 4993518.

It is an arithmetic number, because the mean of its divisors is an integer number (3055514467998).

Almost surely, 2^{12222050031311} is an apocalyptic number.

12222050031311 is a deficient number, since it is larger than the sum of its proper divisors (7840681).

12222050031311 is an equidigital number, since it uses as much as digits as its factorization.

12222050031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840680.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12222050031311 its reverse (11313005022221), we get a palindrome (23535055053532).

The spelling of 12222050031311 in words is "twelve trillion, two hundred twenty-two billion, fifty million, thirty-one thousand, three hundred eleven".