1322323221 has 8 divisors (see below), whose sum is σ = 1855892320. Its totient is φ = 835151472.

The previous prime is 1322323213. The next prime is 1322323253. The reversal of 1322323221 is 1223232231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1322323221 - 2³ = 1322323213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322323271) 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, 11599270 + ... + 11599383.

It is an arithmetic number, because the mean of its divisors is an integer number (231986540).

Almost surely, 2^1322323221 is an apocalyptic number.

It is an amenable number.

1322323221 is a deficient number, since it is larger than the sum of its proper divisors (533569099).

1322323221 is a wasteful number, since it uses less digits than its factorization.

1322323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23198675.

The product of its digits is 864, while the sum is 21.

The square root of 1322323221 is about 36363.7624703495. The cubic root of 1322323221 is about 1097.6044897514.

Adding to 1322323221 its reverse (1223232231), we get a palindrome (2545555452).

The spelling of 1322323221 in words is "one billion, three hundred twenty-two million, three hundred twenty-three thousand, two hundred twenty-one".