13511222116 has 48 divisors (see below), whose sum is σ = 27205057152. Its totient is φ = 5751475200.

The previous prime is 13511222111. The next prime is 13511222159. The reversal of 13511222116 is 61122211531.

It is not an unprimeable number, because it can be changed into a prime (13511222111) 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, 7960980 + ... + 7962676.

It is an arithmetic number, because the mean of its divisors is an integer number (566772024).

Almost surely, 2^13511222116 is an apocalyptic number.

It is an amenable number.

13511222116 is an abundant number, since it is smaller than the sum of its proper divisors (13693835036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13511222116 is a wasteful number, since it uses less digits than its factorization.

13511222116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460 (or 3458 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

Adding to 13511222116 its reverse (61122211531), we get a palindrome (74633433647).

The spelling of 13511222116 in words is "thirteen billion, five hundred eleven million, two hundred twenty-two thousand, one hundred sixteen".