13211211 has 16 divisors (see below), whose sum is σ = 19625760. Its totient is φ = 7848960.

The previous prime is 13211207. The next prime is 13211243. The reversal of 13211211 is 11211231.

13211211 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13211211 - 2² = 13211207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13211201) 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, 4710 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (1226610).

Almost surely, 2^13211211 is an apocalyptic number.

13211211 is a deficient number, since it is larger than the sum of its proper divisors (6414549).

13211211 is a wasteful number, since it uses less digits than its factorization.

13211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11726.

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

The square root of 13211211 is about 3634.7229605570. The cubic root of 13211211 is about 236.4000385077.

Adding to 13211211 its reverse (11211231), we get a palindrome (24422442).

The spelling of 13211211 in words is "thirteen million, two hundred eleven thousand, two hundred eleven".