2212311320 has 64 divisors (see below), whose sum is σ = 5286967200. Its totient is φ = 830269440.

The previous prime is 2212311287. The next prime is 2212311347. The reversal of 2212311320 is 231132122.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220166 + ... + 229994.

Almost surely, 2^2212311320 is an apocalyptic number.

2212311320 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 2212311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643483600).

2212311320 is an abundant number, since it is smaller than the sum of its proper divisors (3074655880).

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

2212311320 is a wasteful number, since it uses less digits than its factorization.

2212311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10188 (or 10184 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2212311320 is about 47035.2136170338. The cubic root of 2212311320 is about 1303.0129956392.

Adding to 2212311320 its reverse (231132122), we get a palindrome (2443443442).

The spelling of 2212311320 in words is "two billion, two hundred twelve million, three hundred eleven thousand, three hundred twenty".