13220011011 has 4 divisors (see below), whose sum is σ = 17626681352. Its totient is φ = 8813340672.

The previous prime is 13220011009. The next prime is 13220011033. The reversal of 13220011011 is 11011002231.

13220011011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13220011011 - 2¹ = 13220011009 is a prime.

It is a super-2 number, since 2×13220011011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220011061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203335166 + ... + 2203335171.

It is an arithmetic number, because the mean of its divisors is an integer number (4406670338).

Almost surely, 2^13220011011 is an apocalyptic number.

13220011011 is a deficient number, since it is larger than the sum of its proper divisors (4406670341).

13220011011 is an equidigital number, since it uses as much as digits as its factorization.

13220011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406670340.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 13220011011 its reverse (11011002231), we get a palindrome (24231013242).

The spelling of 13220011011 in words is "thirteen billion, two hundred twenty million, eleven thousand, eleven".