1304232221 has 8 divisors (see below), whose sum is σ = 1320346944. Its totient is φ = 1288172160.

The previous prime is 1304232211. The next prime is 1304232233. The reversal of 1304232221 is 1222324031.

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 1304232221 - 2¹⁴ = 1304215837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304232193 and 1304232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304232211) 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, 35426 + ... + 62156.

It is an arithmetic number, because the mean of its divisors is an integer number (165043368).

Almost surely, 2^1304232221 is an apocalyptic number.

It is an amenable number.

1304232221 is a deficient number, since it is larger than the sum of its proper divisors (16114723).

1304232221 is an equidigital number, since it uses as much as digits as its factorization.

1304232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27331.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1304232221 is about 36114.1554103097. The cubic root of 1304232221 is about 1092.5759631737.

Adding to 1304232221 its reverse (1222324031), we get a palindrome (2526556252).

The spelling of 1304232221 in words is "one billion, three hundred four million, two hundred thirty-two thousand, two hundred twenty-one".