1012224 has 40 divisors (see below), whose sum is σ = 2700720. Its totient is φ = 336896.

The previous prime is 1012217. The next prime is 1012229. The reversal of 1012224 is 4222101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1012229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (67518).

2^1012224 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 1012224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350360).

1012224 is an abundant number, since it is smaller than the sum of its proper divisors (1688496).

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

1012224 is an frugal number, since it uses more digits than its factorization.

1012224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1012224 is about 1006.0934350248. The cubic root of 1012224 is about 100.4058175600.

Adding to 1012224 its reverse (4222101), we get a palindrome (5234325).

The spelling of 1012224 in words is "one million, twelve thousand, two hundred twenty-four".