1330221330321 has 16 divisors (see below), whose sum is σ = 1928972902080. Its totient is φ = 810492811200.

The previous prime is 1330221330313. The next prime is 1330221330343. The reversal of 1330221330321 is 1230331220331.

It is not a de Polignac number, because 1330221330321 - 2³ = 1330221330313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330221330291 and 1330221330300.

It is not an unprimeable number, because it can be changed into a prime (1330221330301) 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, 168848731 + ... + 168856608.

It is an arithmetic number, because the mean of its divisors is an integer number (120560806380).

Almost surely, 2^{1330221330321} is an apocalyptic number.

It is an amenable number.

1330221330321 is a deficient number, since it is larger than the sum of its proper divisors (598751571759).

1330221330321 is a wasteful number, since it uses less digits than its factorization.

1330221330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337705456.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1330221330321 its reverse (1230331220331), we get a palindrome (2560552550652).

The spelling of 1330221330321 in words is "one trillion, three hundred thirty billion, two hundred twenty-one million, three hundred thirty thousand, three hundred twenty-one".