1322012224 has 56 divisors (see below), whose sum is σ = 2854465208. Its totient is φ = 603832320.

The previous prime is 1322012203. The next prime is 1322012227. The reversal of 1322012224 is 4222102231.

It can be written as a sum of positive squares in 4 ways, for example, as 60341824 + 1261670400 = 7768^2 + 35520^2 .

It is not an unprimeable number, because it can be changed into a prime (1322012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72514 + ... + 88894.

It is an arithmetic number, because the mean of its divisors is an integer number (50972593).

Almost surely, 2^1322012224 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 1322012224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427232604).

1322012224 is an abundant number, since it is smaller than the sum of its proper divisors (1532452984).

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

1322012224 is a wasteful number, since it uses less digits than its factorization.

1322012224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16503 (or 16493 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1322012224 is about 36359.4860249702. The cubic root of 1322012224 is about 1097.5184345262.

Adding to 1322012224 its reverse (4222102231), we get a palindrome (5544114455).

The spelling of 1322012224 in words is "one billion, three hundred twenty-two million, twelve thousand, two hundred twenty-four".