1322404221 has 8 divisors (see below), whose sum is σ = 1767648544. Its totient is φ = 879381360.

The previous prime is 1322404157. The next prime is 1322404243. The reversal of 1322404221 is 1224042231.

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

It is not a de Polignac number, because 1322404221 - 2⁶ = 1322404157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322404261) 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 7 ways as a sum of consecutive naturals, for example, 553975 + ... + 556356.

It is an arithmetic number, because the mean of its divisors is an integer number (220956068).

Almost surely, 2^1322404221 is an apocalyptic number.

It is an amenable number.

1322404221 is a deficient number, since it is larger than the sum of its proper divisors (445244323).

1322404221 is a wasteful number, since it uses less digits than its factorization.

1322404221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110731.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1322404221 is about 36364.8761994318. The cubic root of 1322404221 is about 1097.6269008501.

Adding to 1322404221 its reverse (1224042231), we get a palindrome (2546446452).

The spelling of 1322404221 in words is "one billion, three hundred twenty-two million, four hundred four thousand, two hundred twenty-one".