13122120101111 has 16 divisors (see below), whose sum is σ = 15129878630400. Its totient is φ = 11147660055168.

The previous prime is 13122120101093. The next prime is 13122120101147. The reversal of 13122120101111 is 11110102122131.

It is not a de Polignac number, because 13122120101111 - 2⁶ = 13122120101047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13122120101111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122120101191) 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, 28053410 + ... + 28517328.

It is an arithmetic number, because the mean of its divisors is an integer number (945617414400).

Almost surely, 2^{13122120101111} is an apocalyptic number.

13122120101111 is a deficient number, since it is larger than the sum of its proper divisors (2007758529289).

13122120101111 is a wasteful number, since it uses less digits than its factorization.

13122120101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499798.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 13122120101111 its reverse (11110102122131), we get a palindrome (24232222223242).

The spelling of 13122120101111 in words is "thirteen trillion, one hundred twenty-two billion, one hundred twenty million, one hundred one thousand, one hundred eleven".