111223000 has 64 divisors (see below), whose sum is σ = 297460800. Its totient is φ = 38131200.

The previous prime is 111222997. The next prime is 111223001. The reversal of 111223000 is 322111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945 + ... + 14944.

It is an arithmetic number, because the mean of its divisors is an integer number (4647825).

Almost surely, 2^111223000 is an apocalyptic number.

111223000 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 111223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148730400).

111223000 is an abundant number, since it is smaller than the sum of its proper divisors (186237800).

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

111223000 is a wasteful number, since it uses less digits than its factorization.

111223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15917 (or 15903 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 111223000 is about 10546.2315544464. The cubic root of 111223000 is about 480.9111743342.

Adding to 111223000 its reverse (322111), we get a palindrome (111545111).

The spelling of 111223000 in words is "one hundred eleven million, two hundred twenty-three thousand".