1212224 has 56 divisors (see below), whose sum is σ = 2731008. Its totient is φ = 529920.

The previous prime is 1212221. The next prime is 1212227. The reversal of 1212224 is 4222121.

It is an interprime number because it is at equal distance from previous prime (1212221) and next prime (1212227).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1212199 and 1212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212221) 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, 25769 + ... + 25815.

It is an arithmetic number, because the mean of its divisors is an integer number (48768).

2^1212224 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 1212224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365504).

1212224 is an abundant number, since it is smaller than the sum of its proper divisors (1518784).

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

1212224 is a wasteful number, since it uses less digits than its factorization.

1212224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 93 counting only the distinct ones).

The product of its digits is 64, while the sum is 14.

The square root of 1212224 is about 1101.0104450004. The cubic root of 1212224 is about 106.6254702024.

Adding to 1212224 its reverse (4222121), we get a palindrome (5434345).

The spelling of 1212224 in words is "one million, two hundred twelve thousand, two hundred twenty-four".