11221117 has 4 divisors (see below), whose sum is σ = 11235040. Its totient is φ = 11207196.

The previous prime is 11221103. The next prime is 11221123. The reversal of 11221117 is 71112211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221117 - 2²³ = 2832509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5673 + ... + 7390.

It is an arithmetic number, because the mean of its divisors is an integer number (2808760).

Almost surely, 2^11221117 is an apocalyptic number.

It is an amenable number.

11221117 is a deficient number, since it is larger than the sum of its proper divisors (13923).

11221117 is an equidigital number, since it uses as much as digits as its factorization.

11221117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13922.

The product of its digits is 28, while the sum is 16.

The square root of 11221117 is about 3349.7935757297. The cubic root of 11221117 is about 223.8783153393.

Adding to 11221117 its reverse (71112211), we get a palindrome (82333328).

The spelling of 11221117 in words is "eleven million, two hundred twenty-one thousand, one hundred seventeen".