2216212512 has 48 divisors (see below), whose sum is σ = 5820413760. Its totient is φ = 738374912.

The previous prime is 2216212511. The next prime is 2216212513. The reversal of 2216212512 is 2152126122.

It is an interprime number because it is at equal distance from previous prime (2216212511) and next prime (2216212513).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2216212511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251314 + ... + 259982.

It is an arithmetic number, because the mean of its divisors is an integer number (121258620).

Almost surely, 2^2216212512 is an apocalyptic number.

It is an amenable number.

2216212512 is an abundant number, since it is smaller than the sum of its proper divisors (3604201248).

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

2216212512 is a wasteful number, since it uses less digits than its factorization.

2216212512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345 (or 11337 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 2216212512 is about 47076.6663220751. Note that the first 3 decimals coincide. The cubic root of 2216212512 is about 1303.7784573511.

Adding to 2216212512 its reverse (2152126122), we get a palindrome (4368338634).

The spelling of 2216212512 in words is "two billion, two hundred sixteen million, two hundred twelve thousand, five hundred twelve".