11221736 has 16 divisors (see below), whose sum is σ = 21259140. Its totient is φ = 5552640.

The previous prime is 11221709. The next prime is 11221739. The reversal of 11221736 is 63712211.

It can be written as a sum of positive squares in 2 ways, for example, as 10201636 + 1020100 = 3194^2 + 1010^2 .

It is not an unprimeable number, because it can be changed into a prime (11221739) 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, 6455 + ... + 8006.

Almost surely, 2^11221736 is an apocalyptic number.

It is an amenable number.

11221736 is a deficient number, since it is larger than the sum of its proper divisors (10037404).

11221736 is a wasteful number, since it uses less digits than its factorization.

11221736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14564 (or 14560 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 11221736 is about 3349.8859682085. The cubic root of 11221736 is about 223.8824319268.

Adding to 11221736 its reverse (63712211), we get a palindrome (74933947).

The spelling of 11221736 in words is "eleven million, two hundred twenty-one thousand, seven hundred thirty-six".