11122211 has 8 divisors (see below), whose sum is σ = 11520000. Its totient is φ = 10726920.

The previous prime is 11122187. The next prime is 11122217. The reversal of 11122211 is 11222111.

11122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11122211 - 2¹⁴ = 11105827 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11122192 and 11122201.

It is not an unprimeable number, because it can be changed into a prime (11122217) 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, 15110 + ... + 15828.

It is an arithmetic number, because the mean of its divisors is an integer number (1440000).

Almost surely, 2^11122211 is an apocalyptic number.

11122211 is a deficient number, since it is larger than the sum of its proper divisors (397789).

11122211 is an equidigital number, since it uses as much as digits as its factorization.

11122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its digits is 8, while the sum is 11.

The square root of 11122211 is about 3334.9979010488. The cubic root of 11122211 is about 223.2185982777.

Adding to 11122211 its reverse (11222111), we get a palindrome (22344322).

It can be divided in two parts, 111 and 22211, that added together give a palindrome (22322).

The spelling of 11122211 in words is "eleven million, one hundred twenty-two thousand, two hundred eleven".