11223000 has 192 divisors, whose sum is σ = 40154400. Its totient is φ = 2822400.

The previous prime is 11222917. The next prime is 11223001. The reversal of 11223000 is 32211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260979 + ... + 261021.

Almost surely, 2^11223000 is an apocalyptic number.

11223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20077200).

11223000 is an abundant number, since it is smaller than the sum of its proper divisors (28931400).

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

11223000 is a wasteful number, since it uses less digits than its factorization.

11223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 11223000 is about 3350.0746260345. The cubic root of 11223000 is about 223.8908375415.

Adding to 11223000 its reverse (32211), we get a palindrome (11255211).

The spelling of 11223000 in words is "eleven million, two hundred twenty-three thousand".