1330331013221 has 4 divisors (see below), whose sum is σ = 1520378300832. Its totient is φ = 1140283725612.

The previous prime is 1330331013217. The next prime is 1330331013247. The reversal of 1330331013221 is 1223101330331.

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 a cyclic number.

It is not a de Polignac number, because 1330331013221 - 2² = 1330331013217 is a prime.

It is a super-2 number, since 2×1330331013221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330331013821) 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, 95023643795 + ... + 95023643808.

It is an arithmetic number, because the mean of its divisors is an integer number (380094575208).

Almost surely, 2^{1330331013221} is an apocalyptic number.

It is an amenable number.

1330331013221 is a deficient number, since it is larger than the sum of its proper divisors (190047287611).

1330331013221 is an equidigital number, since it uses as much as digits as its factorization.

1330331013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190047287610.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1330331013221 its reverse (1223101330331), we get a palindrome (2553432343552).

The spelling of 1330331013221 in words is "one trillion, three hundred thirty billion, three hundred thirty-one million, thirteen thousand, two hundred twenty-one".