1330221133 has 4 divisors (see below), whose sum is σ = 1330462588. Its totient is φ = 1329979680.

The previous prime is 1330221127. The next prime is 1330221157. The reversal of 1330221133 is 3311220331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 689220009 + 641001124 = 26253^2 + 25318^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330221133 - 2²⁹ = 793350221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330221173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112266 + ... + 123547.

It is an arithmetic number, because the mean of its divisors is an integer number (332615647).

Almost surely, 2^1330221133 is an apocalyptic number.

It is an amenable number.

1330221133 is a deficient number, since it is larger than the sum of its proper divisors (241455).

1330221133 is an equidigital number, since it uses as much as digits as its factorization.

1330221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241454.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1330221133 is about 36472.1967120161. The cubic root of 1330221133 is about 1099.7853942221.

Adding to 1330221133 its reverse (3311220331), we get a palindrome (4641441464).

The spelling of 1330221133 in words is "one billion, three hundred thirty million, two hundred twenty-one thousand, one hundred thirty-three".