1322012321 has 8 divisors (see below), whose sum is σ = 1526448000. Its totient is φ = 1121470848.

The previous prime is 1322012311. The next prime is 1322012347. The reversal of 1322012321 is 1232102231.

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

It is a cyclic number.

It is not a de Polignac number, because 1322012321 - 2¹⁰ = 1322011297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1322012321.

It is not an unprimeable number, because it can be changed into a prime (1322012311) 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, 972821 + ... + 974178.

It is an arithmetic number, because the mean of its divisors is an integer number (190806000).

Almost surely, 2^1322012321 is an apocalyptic number.

It is an amenable number.

1322012321 is a deficient number, since it is larger than the sum of its proper divisors (204435679).

1322012321 is an equidigital number, since it uses as much as digits as its factorization.

1322012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947103.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1322012321 is about 36359.4873588724. The cubic root of 1322012321 is about 1097.5184613689.

Adding to 1322012321 its reverse (1232102231), we get a palindrome (2554114552).

The spelling of 1322012321 in words is "one billion, three hundred twenty-two million, twelve thousand, three hundred twenty-one".