16216111212 has 96 divisors (see below), whose sum is σ = 44464304640. Its totient is φ = 4502615040.

The previous prime is 16216111207. The next prime is 16216111297. The reversal of 16216111212 is 21211161261.

16216111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3133387 + ... + 3138557.

It is an arithmetic number, because the mean of its divisors is an integer number (463169840).

Almost surely, 2^16216111212 is an apocalyptic number.

16216111212 is a gapful number since it is divisible by the number (12) 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 16216111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22232152320).

16216111212 is an abundant number, since it is smaller than the sum of its proper divisors (28248193428).

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

16216111212 is a wasteful number, since it uses less digits than its factorization.

16216111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231 (or 6229 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

Adding to 16216111212 its reverse (21211161261), we get a palindrome (37427272473).

The spelling of 16216111212 in words is "sixteen billion, two hundred sixteen million, one hundred eleven thousand, two hundred twelve".