1330313221021 has 2 divisors, whose sum is σ = 1330313221022. Its totient is φ = 1330313221020.

The previous prime is 1330313221001. The next prime is 1330313221037. The reversal of 1330313221021 is 1201223130331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1330066291225 + 246929796 = 1153285^2 + 15714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330313221021 - 2⁵ = 1330313220989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330313220983 and 1330313221001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330313221001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665156610510 + 665156610511.

It is an arithmetic number, because the mean of its divisors is an integer number (665156610511).

Almost surely, 2^{1330313221021} is an apocalyptic number.

It is an amenable number.

1330313221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330313221021 is an equidigital number, since it uses as much as digits as its factorization.

1330313221021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1330313221021 its reverse (1201223130331), we get a palindrome (2531536351352).

The spelling of 1330313221021 in words is "one trillion, three hundred thirty billion, three hundred thirteen million, two hundred twenty-one thousand, twenty-one".