13211226 has 24 divisors (see below), whose sum is σ = 32713824. Its totient is φ = 3774600.

The previous prime is 13211207. The next prime is 13211243. The reversal of 13211226 is 62211231.

13211226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13211199 and 13211208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52300 + ... + 52551.

It is an arithmetic number, because the mean of its divisors is an integer number (1363076).

Almost surely, 2^13211226 is an apocalyptic number.

13211226 is an abundant number, since it is smaller than the sum of its proper divisors (19502598).

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

13211226 is a wasteful number, since it uses less digits than its factorization.

13211226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104866 (or 104863 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 13211226 is about 3634.7250239874. The cubic root of 13211226 is about 236.4001279771.

Adding to 13211226 its reverse (62211231), we get a palindrome (75422457).

The spelling of 13211226 in words is "thirteen million, two hundred eleven thousand, two hundred twenty-six".