1323221132 has 12 divisors (see below), whose sum is σ = 2323879656. Its totient is φ = 659255520.

The previous prime is 1323221131. The next prime is 1323221147. The reversal of 1323221132 is 2311223231.

It is a super-2 number, since 2×1323221132² = 3501828328342722848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323221131) 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, 587498 + ... + 589745.

It is an arithmetic number, because the mean of its divisors is an integer number (193656638).

Almost surely, 2^1323221132 is an apocalyptic number.

It is an amenable number.

1323221132 is a deficient number, since it is larger than the sum of its proper divisors (1000658524).

1323221132 is a wasteful number, since it uses less digits than its factorization.

1323221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177528 (or 1177526 counting only the distinct ones).

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

The square root of 1323221132 is about 36376.1066085968. The cubic root of 1323221132 is about 1097.8528728338.

Adding to 1323221132 its reverse (2311223231), we get a palindrome (3634444363).

The spelling of 1323221132 in words is "one billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-two".