11222117 has 4 divisors (see below), whose sum is σ = 11257836. Its totient is φ = 11186400.

The previous prime is 11222089. The next prime is 11222129. The reversal of 11222117 is 71122211.

11222117 is digitally balanced in base 3, 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 can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 9897316 = 1151^2 + 3146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222095 and 11222104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17384 + ... + 18017.

It is an arithmetic number, because the mean of its divisors is an integer number (2814459).

Almost surely, 2^11222117 is an apocalyptic number.

It is an amenable number.

11222117 is a deficient number, since it is larger than the sum of its proper divisors (35719).

11222117 is an equidigital number, since it uses as much as digits as its factorization.

11222117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35718.

The product of its digits is 56, while the sum is 17.

The square root of 11222117 is about 3349.9428353332. The cubic root of 11222117 is about 223.8849656477.

Adding to 11222117 its reverse (71122211), we get a palindrome (82344328).

The spelling of 11222117 in words is "eleven million, two hundred twenty-two thousand, one hundred seventeen".