13120222111 has 2 divisors, whose sum is σ = 13120222112. Its totient is φ = 13120222110.

The previous prime is 13120222109. The next prime is 13120222123. The reversal of 13120222111 is 11122202131.

It is a weak prime.

It is an emirp because it is prime and its reverse (11122202131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13120222111 - 2¹ = 13120222109 is a prime.

Together with 13120222109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120222151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560111055 + 6560111056.

It is an arithmetic number, because the mean of its divisors is an integer number (6560111056).

Almost surely, 2^13120222111 is an apocalyptic number.

13120222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120222111 is an equidigital number, since it uses as much as digits as its factorization.

13120222111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13120222111 its reverse (11122202131), we get a palindrome (24242424242).

The spelling of 13120222111 in words is "thirteen billion, one hundred twenty million, two hundred twenty-two thousand, one hundred eleven".