2213222312 has 64 divisors (see below), whose sum is σ = 4877591040. Its totient is φ = 921715200.

The previous prime is 2213222281. The next prime is 2213222317. The reversal of 2213222312 is 2132223122.

It is a happy number.

2213222312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2213222317) 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, 620438 + ... + 623994.

It is an arithmetic number, because the mean of its divisors is an integer number (76212360).

Almost surely, 2^2213222312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2213222312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2438795520).

2213222312 is an abundant number, since it is smaller than the sum of its proper divisors (2664368728).

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

2213222312 is a wasteful number, since it uses less digits than its factorization.

2213222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882 (or 3878 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 2213222312 is about 47044.8967689376. The cubic root of 2213222312 is about 1303.1918239244.

Adding to 2213222312 its reverse (2132223122), we get a palindrome (4345445434).

It can be divided in two parts, 22132 and 22312, that added together give a palindrome (44444).

The spelling of 2213222312 in words is "two billion, two hundred thirteen million, two hundred twenty-two thousand, three hundred twelve".