1330404243221 has 16 divisors (see below), whose sum is σ = 1440037146240. Its totient is φ = 1224966286080.

The previous prime is 1330404243167. The next prime is 1330404243251. The reversal of 1330404243221 is 1223424040331.

It is a cyclic number.

It is not a de Polignac number, because 1330404243221 - 2³⁰ = 1329330501397 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 (1330404243251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3041960 + ... + 3451713.

It is an arithmetic number, because the mean of its divisors is an integer number (90002321640).

Almost surely, 2^{1330404243221} is an apocalyptic number.

It is an amenable number.

1330404243221 is a deficient number, since it is larger than the sum of its proper divisors (109632903019).

1330404243221 is a wasteful number, since it uses less digits than its factorization.

1330404243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493996.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1330404243221 its reverse (1223424040331), we get a palindrome (2553828283552).

The spelling of 1330404243221 in words is "one trillion, three hundred thirty billion, four hundred four million, two hundred forty-three thousand, two hundred twenty-one".