11221744 has 10 divisors (see below), whose sum is σ = 21742160. Its totient is φ = 5610864.

The previous prime is 11221739. The next prime is 11221757. The reversal of 11221744 is 44712211.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 350664 + ... + 350695.

It is an arithmetic number, because the mean of its divisors is an integer number (2174216).

Almost surely, 2^11221744 is an apocalyptic number.

It is an amenable number.

11221744 is a deficient number, since it is larger than the sum of its proper divisors (10520416).

11221744 is an equidigital number, since it uses as much as digits as its factorization.

11221744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701367 (or 701361 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 11221744 is about 3349.8871622788. The cubic root of 11221744 is about 223.8824851288.

Adding to 11221744 its reverse (44712211), we get a palindrome (55933955).

The spelling of 11221744 in words is "eleven million, two hundred twenty-one thousand, seven hundred forty-four".