11001224 has 48 divisors (see below), whose sum is σ = 22838400. Its totient is φ = 4964544.

The previous prime is 11001217. The next prime is 11001239. The reversal of 11001224 is 42210011.

It is a super-3 number, since 3×11001224³ (a number of 22 digits) contains 333 as substring.

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 in 11 ways as a sum of consecutive naturals, for example, 106757 + ... + 106859.

It is an arithmetic number, because the mean of its divisors is an integer number (475800).

Almost surely, 2^11001224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11001224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11419200).

11001224 is an abundant number, since it is smaller than the sum of its proper divisors (11837176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001224 is a wasteful number, since it uses less digits than its factorization.

11001224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11001224 is about 3316.8093101654. The cubic root of 11001224 is about 222.4062576953.

Adding to 11001224 its reverse (42210011), we get a palindrome (53211235).

The spelling of 11001224 in words is "eleven million, one thousand, two hundred twenty-four".