221313301002320 has 40 divisors (see below), whose sum is σ = 516107966961120. Its totient is φ = 88257872292480.

The previous prime is 221313301002271. The next prime is 221313301002329. The reversal of 221313301002320 is 23200103313122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221313301002329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4178850050 + ... + 4178903009.

It is an arithmetic number, because the mean of its divisors is an integer number (12902699174028).

Almost surely, 2^{221313301002320} is an apocalyptic number.

221313301002320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221313301002320 is an abundant number, since it is smaller than the sum of its proper divisors (294794665958800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221313301002320 is a wasteful number, since it uses less digits than its factorization.

221313301002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8357753403 (or 8357753397 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221313301002320 its reverse (23200103313122), we get a palindrome (244513404315442).

The spelling of 221313301002320 in words is "two hundred twenty-one trillion, three hundred thirteen billion, three hundred one million, two thousand, three hundred twenty".