2216322012 has 24 divisors (see below), whose sum is σ = 5173926912. Its totient is φ = 738415600.

The previous prime is 2216322001. The next prime is 2216322107. The reversal of 2216322012 is 2102236122.

It is a self number, because there is not a number n which added to its sum of digits gives 2216322012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18414 + ... + 69077.

It is an arithmetic number, because the mean of its divisors is an integer number (215580288).

Almost surely, 2^2216322012 is an apocalyptic number.

It is an amenable number.

2216322012 is an abundant number, since it is smaller than the sum of its proper divisors (2957604900).

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

2216322012 is a wasteful number, since it uses less digits than its factorization.

2216322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89609 (or 89607 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2216322012 is about 47077.8293042489. The cubic root of 2216322012 is about 1303.7999296286.

Adding to 2216322012 its reverse (2102236122), we get a palindrome (4318558134).

The spelling of 2216322012 in words is "two billion, two hundred sixteen million, three hundred twenty-two thousand, twelve".