11223522 has 40 divisors (see below), whose sum is σ = 26027100. Its totient is φ = 3610656.

The previous prime is 11223521. The next prime is 11223533. The reversal of 11223522 is 22532211.

It can be written as a sum of positive squares in 2 ways, for example, as 11029041 + 194481 = 3321^2 + 441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11223495 and 11223504.

It is not an unprimeable number, because it can be changed into a prime (11223521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3504 + ... + 5892.

Almost surely, 2^11223522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13013550).

11223522 is an abundant number, since it is smaller than the sum of its proper divisors (14803578).

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

11223522 is a wasteful number, since it uses less digits than its factorization.

11223522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2423 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 11223522 is about 3350.1525338408. The cubic root of 11223522 is about 223.8943086635.

Adding to 11223522 its reverse (22532211), we get a palindrome (33755733).

The spelling of 11223522 in words is "eleven million, two hundred twenty-three thousand, five hundred twenty-two".