11220722 has 4 divisors (see below), whose sum is σ = 16831086. Its totient is φ = 5610360.

The previous prime is 11220707. The next prime is 11220749. The reversal of 11220722 is 22702211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22702211 = 7 ⋅3243173.

It can be written as a sum of positive squares in only one way, i.e., 10686361 + 534361 = 3269^2 + 731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11220722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805179 + ... + 2805182.

Almost surely, 2^11220722 is an apocalyptic number.

11220722 is a deficient number, since it is larger than the sum of its proper divisors (5610364).

11220722 is an equidigital number, since it uses as much as digits as its factorization.

11220722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610363.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 11220722 is about 3349.7346163540. The cubic root of 11220722 is about 223.8756883586.

Adding to 11220722 its reverse (22702211), we get a palindrome (33922933).

The spelling of 11220722 in words is "eleven million, two hundred twenty thousand, seven hundred twenty-two".