11221005224 has 128 divisors (see below), whose sum is σ = 25404986880. Its totient is φ = 4578508800.

The previous prime is 11221005223. The next prime is 11221005259. The reversal of 11221005224 is 42250012211.

It is a junction number, because it is equal to n+sod(n) for n = 11221005196 and 11221005205.

It is not an unprimeable number, because it can be changed into a prime (11221005223) 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, 9731432 + ... + 9732584.

It is an arithmetic number, because the mean of its divisors is an integer number (198476460).

Almost surely, 2^11221005224 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 11221005224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12702493440).

11221005224 is an abundant number, since it is smaller than the sum of its proper divisors (14183981656).

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

11221005224 is a wasteful number, since it uses less digits than its factorization.

11221005224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 11221005224 its reverse (42250012211), we get a palindrome (53471017435).

The spelling of 11221005224 in words is "eleven billion, two hundred twenty-one million, five thousand, two hundred twenty-four".