1133221224 has 128 divisors (see below), whose sum is σ = 3151146240. Its totient is φ = 337784832.

The previous prime is 1133221223. The next prime is 1133221231. The reversal of 1133221224 is 4221223311.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1133221224.

It is not an unprimeable number, because it can be changed into a prime (1133221223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1848342 + ... + 1848954.

It is an arithmetic number, because the mean of its divisors is an integer number (24618330).

Almost surely, 2^1133221224 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 1133221224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575573120).

1133221224 is an abundant number, since it is smaller than the sum of its proper divisors (2017925016).

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

1133221224 is a wasteful number, since it uses less digits than its factorization.

1133221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 855 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1133221224 is about 33663.3513483135. The cubic root of 1133221224 is about 1042.5692222091.

Adding to 1133221224 its reverse (4221223311), we get a palindrome (5354444535).

The spelling of 1133221224 in words is "one billion, one hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-four".