2215252312 has 128 divisors (see below), whose sum is σ = 5333852160. Its totient is φ = 838978560.

The previous prime is 2215252297. The next prime is 2215252357. The reversal of 2215252312 is 2132525122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2324028 + ... + 2324980.

It is an arithmetic number, because the mean of its divisors is an integer number (41670720).

Almost surely, 2^2215252312 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 2215252312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2666926080).

2215252312 is an abundant number, since it is smaller than the sum of its proper divisors (3118599848).

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

2215252312 is a wasteful number, since it uses less digits than its factorization.

2215252312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1109 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 2215252312 is about 47066.4669589720. The cubic root of 2215252312 is about 1303.5901377277.

Adding to 2215252312 its reverse (2132525122), we get a palindrome (4347777434).

The spelling of 2215252312 in words is "two billion, two hundred fifteen million, two hundred fifty-two thousand, three hundred twelve".