1330234221 has 4 divisors (see below), whose sum is σ = 1773645632. Its totient is φ = 886822812.

The previous prime is 1330234219. The next prime is 1330234223. The reversal of 1330234221 is 1224320331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1330234219) and next prime (1330234223).

It is not a de Polignac number, because 1330234221 - 2¹ = 1330234219 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 (1330234223) 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 3 ways as a sum of consecutive naturals, for example, 221705701 + ... + 221705706.

It is an arithmetic number, because the mean of its divisors is an integer number (443411408).

Almost surely, 2^1330234221 is an apocalyptic number.

It is an amenable number.

1330234221 is a deficient number, since it is larger than the sum of its proper divisors (443411411).

1330234221 is an equidigital number, since it uses as much as digits as its factorization.

1330234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443411410.

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

The square root of 1330234221 is about 36472.3761359196. The cubic root of 1330234221 is about 1099.7890011272.

Adding to 1330234221 its reverse (1224320331), we get a palindrome (2554554552).

The spelling of 1330234221 in words is "one billion, three hundred thirty million, two hundred thirty-four thousand, two hundred twenty-one".