1322204312 has 128 divisors (see below), whose sum is σ = 3139153920. Its totient is φ = 513216000.

The previous prime is 1322204311. The next prime is 1322204327. The reversal of 1322204312 is 2134022231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322204311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814862 + ... + 816482.

It is an arithmetic number, because the mean of its divisors is an integer number (24524640).

Almost surely, 2^1322204312 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 1322204312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569576960).

1322204312 is an abundant number, since it is smaller than the sum of its proper divisors (1816949608).

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

1322204312 is a wasteful number, since it uses less digits than its factorization.

1322204312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1322204312 is about 36362.1274405115. The cubic root of 1322204312 is about 1097.5715883240.

Adding to 1322204312 its reverse (2134022231), we get a palindrome (3456226543).

The spelling of 1322204312 in words is "one billion, three hundred twenty-two million, two hundred four thousand, three hundred twelve".