13112211 has 8 divisors (see below), whose sum is σ = 19980544. Its totient is φ = 7492680.

The previous prime is 13112161. The next prime is 13112221. The reversal of 13112211 is 11221131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13112211 - 2¹⁰ = 13111187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312175 + ... + 312216.

It is an arithmetic number, because the mean of its divisors is an integer number (2497568).

Almost surely, 2^13112211 is an apocalyptic number.

13112211 is a deficient number, since it is larger than the sum of its proper divisors (6868333).

13112211 is an equidigital number, since it uses as much as digits as its factorization.

13112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624401.

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

The square root of 13112211 is about 3621.0787066840. The cubic root of 13112211 is about 235.8080587674.

Adding to 13112211 its reverse (11221131), we get a palindrome (24333342).

The spelling of 13112211 in words is "thirteen million, one hundred twelve thousand, two hundred eleven".