13111223222211 has 4 divisors (see below), whose sum is σ = 17481630962952. Its totient is φ = 8740815481472.

The previous prime is 13111223222203. The next prime is 13111223222239. The reversal of 13111223222211 is 11222232211131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13111223222211 - 2³ = 13111223222203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13111223222311) 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, 2185203870366 + ... + 2185203870371.

It is an arithmetic number, because the mean of its divisors is an integer number (4370407740738).

Almost surely, 2^{13111223222211} is an apocalyptic number.

13111223222211 is a deficient number, since it is larger than the sum of its proper divisors (4370407740741).

13111223222211 is an equidigital number, since it uses as much as digits as its factorization.

13111223222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370407740740.

The product of its digits is 576, while the sum is 24.

Adding to 13111223222211 its reverse (11222232211131), we get a palindrome (24333455433342).

The spelling of 13111223222211 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty-three million, two hundred twenty-two thousand, two hundred eleven".