1322231312 has 20 divisors (see below), whose sum is σ = 2566756476. Its totient is φ = 659842560.

The previous prime is 1322231269. The next prime is 1322231327. The reversal of 1322231312 is 2131322231.

It can be written as a sum of positive squares in 2 ways, for example, as 643941376 + 678289936 = 25376^2 + 26044^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70973 + ... + 87644.

Almost surely, 2^1322231312 is an apocalyptic number.

It is an amenable number.

1322231312 is a deficient number, since it is larger than the sum of its proper divisors (1244525164).

1322231312 is a wasteful number, since it uses less digits than its factorization.

1322231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159146 (or 159140 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1322231312 is about 36362.4987040220. The cubic root of 1322231312 is about 1097.5790592397.

Adding to 1322231312 its reverse (2131322231), we get a palindrome (3453553543).

The spelling of 1322231312 in words is "one billion, three hundred twenty-two million, two hundred thirty-one thousand, three hundred twelve".