1330044221 has 6 divisors (see below), whose sum is σ = 1461949566. Its totient is φ = 1209131000.

The previous prime is 1330044193. The next prime is 1330044227. The reversal of 1330044221 is 1224400331.

It can be written as a sum of positive squares in only one way, i.e., 905107225 + 424936996 = 30085^2 + 20614^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1330044221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330044193 and 1330044202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330044227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5495930 + ... + 5496171.

It is an arithmetic number, because the mean of its divisors is an integer number (243658261).

Almost surely, 2^1330044221 is an apocalyptic number.

1330044221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1330044221 is a deficient number, since it is larger than the sum of its proper divisors (131905345).

1330044221 is a wasteful number, since it uses less digits than its factorization.

1330044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992123 (or 10992112 counting only the distinct ones).

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

The square root of 1330044221 is about 36469.7713318853. The cubic root of 1330044221 is about 1099.7366369504.

Adding to 1330044221 its reverse (1224400331), we get a palindrome (2554444552).

The spelling of 1330044221 in words is "one billion, three hundred thirty million, forty-four thousand, two hundred twenty-one".