221310020020313 has 8 divisors (see below), whose sum is σ = 255381326848128. Its totient is φ = 187852610613024.

The previous prime is 221310020020303. The next prime is 221310020020321. The reversal of 221310020020313 is 313020020013122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-221310020020313 is a prime.

It is a super-2 number, since 2×221310020020313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221310020020303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153474354356 + ... + 153474355797.

It is an arithmetic number, because the mean of its divisors is an integer number (31922665856016).

Almost surely, 2^{221310020020313} is an apocalyptic number.

It is an amenable number.

221310020020313 is a deficient number, since it is larger than the sum of its proper divisors (34071306827815).

221310020020313 is a wasteful number, since it uses less digits than its factorization.

221310020020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306948710263.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221310020020313 its reverse (313020020013122), we get a palindrome (534330040033435).

The spelling of 221310020020313 in words is "two hundred twenty-one trillion, three hundred ten billion, twenty million, twenty thousand, three hundred thirteen".