1330201221 has 16 divisors (see below), whose sum is σ = 1783260864. Its totient is φ = 881985024.

The previous prime is 1330201207. The next prime is 1330201241. The reversal of 1330201221 is 1221020331.

It is not a de Polignac number, because 1330201221 - 2⁵ = 1330201189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330201241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511701 + ... + 514293.

It is an arithmetic number, because the mean of its divisors is an integer number (111453804).

Almost surely, 2^1330201221 is an apocalyptic number.

It is an amenable number.

1330201221 is a deficient number, since it is larger than the sum of its proper divisors (453059643).

1330201221 is a wasteful number, since it uses less digits than its factorization.

1330201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1330201221 is about 36471.9237359369. The cubic root of 1330201221 is about 1099.7799066543.

Adding to 1330201221 its reverse (1221020331), we get a palindrome (2551221552).

The spelling of 1330201221 in words is "one billion, three hundred thirty million, two hundred one thousand, two hundred twenty-one".