2220315320 has 64 divisors (see below), whose sum is σ = 5162905440. Its totient is φ = 858816000.

The previous prime is 2220315299. The next prime is 2220315329. The reversal of 2220315320 is 235130222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2220315292 and 2220315301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220315329) 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, 167330 + ... + 180110.

Almost surely, 2^2220315320 is an apocalyptic number.

2220315320 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 2220315320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581452720).

2220315320 is an abundant number, since it is smaller than the sum of its proper divisors (2942590120).

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

2220315320 is a wasteful number, since it uses less digits than its factorization.

2220315320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936 (or 12932 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2220315320 is about 47120.2219858948. The cubic root of 2220315320 is about 1304.5825100819.

Adding to 2220315320 its reverse (235130222), we get a palindrome (2455445542).

The spelling of 2220315320 in words is "two billion, two hundred twenty million, three hundred fifteen thousand, three hundred twenty".