220311320213320 has 128 divisors (see below), whose sum is σ = 572366665728000. Its totient is φ = 74755965954816.

The previous prime is 220311320213317. The next prime is 220311320213323. The reversal of 220311320213320 is 23312023113022.

It is an interprime number because it is at equal distance from previous prime (220311320213317) and next prime (220311320213323).

It is a super-2 number, since 2×220311320213320² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220311320213323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44575081 + ... + 49270279.

It is an arithmetic number, because the mean of its divisors is an integer number (4471614576000).

Almost surely, 2^{220311320213320} is an apocalyptic number.

220311320213320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220311320213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286183332864000).

220311320213320 is an abundant number, since it is smaller than the sum of its proper divisors (352055345514680).

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

220311320213320 is a wasteful number, since it uses less digits than its factorization.

220311320213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696947 (or 4696943 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 220311320213320 its reverse (23312023113022), we get a palindrome (243623343326342).

The spelling of 220311320213320 in words is "two hundred twenty trillion, three hundred eleven billion, three hundred twenty million, two hundred thirteen thousand, three hundred twenty".