11133212224 has 56 divisors (see below), whose sum is σ = 22732870968. Its totient is φ = 5407334400.

The previous prime is 11133212219. The next prime is 11133212227. The reversal of 11133212224 is 42221233111.

It can be written as a sum of positive squares in 4 ways, for example, as 7624782400 + 3508429824 = 87320^2 + 59232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11133212195 and 11133212204.

It is not an unprimeable number, because it can be changed into a prime (11133212227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326344 + ... + 358840.

Almost surely, 2^11133212224 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 11133212224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11366435484).

11133212224 is an abundant number, since it is smaller than the sum of its proper divisors (11599658744).

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

11133212224 is a wasteful number, since it uses less digits than its factorization.

11133212224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32663 (or 32653 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 11133212224 its reverse (42221233111), we get a palindrome (53354445335).

The spelling of 11133212224 in words is "eleven billion, one hundred thirty-three million, two hundred twelve thousand, two hundred twenty-four".