221002330321313 has 16 divisors (see below), whose sum is σ = 226748007383040. Its totient is φ = 215300924099856.

The previous prime is 221002330321309. The next prime is 221002330321369. The reversal of 221002330321313 is 313123033200122.

It is a cyclic number.

It is not a de Polignac number, because 221002330321313 - 2² = 221002330321309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002330321373) 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, 21388520 + ... + 29991222.

It is an arithmetic number, because the mean of its divisors is an integer number (14171750461440).

Almost surely, 2^{221002330321313} is an apocalyptic number.

It is an amenable number.

221002330321313 is a deficient number, since it is larger than the sum of its proper divisors (5745677061727).

221002330321313 is a wasteful number, since it uses less digits than its factorization.

221002330321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605276.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 221002330321313 its reverse (313123033200122), we get a palindrome (534125363521435).

The spelling of 221002330321313 in words is "two hundred twenty-one trillion, two billion, three hundred thirty million, three hundred twenty-one thousand, three hundred thirteen".