11403220224 has 144 divisors (see below), whose sum is σ = 33879250944. Its totient is φ = 3375052800.

The previous prime is 11403220207. The next prime is 11403220261. The reversal of 11403220224 is 42202230411.

It is a super-2 number, since 2×11403220224² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11403220224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347569 + ... + 378959.

It is an arithmetic number, because the mean of its divisors is an integer number (235272576).

Almost surely, 2^11403220224 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 11403220224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16939625472).

11403220224 is an abundant number, since it is smaller than the sum of its proper divisors (22476030720).

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

11403220224 is a wasteful number, since it uses less digits than its factorization.

11403220224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31464 (or 31450 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 11403220224 its reverse (42202230411), we get a palindrome (53605450635).

The spelling of 11403220224 in words is "eleven billion, four hundred three million, two hundred twenty thousand, two hundred twenty-four".