16216212 has 24 divisors (see below), whose sum is σ = 38861536. Its totient is φ = 5259168.

The previous prime is 16216163. The next prime is 16216223. The reversal of 16216212 is 21261261.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17818 + ... + 18705.

Almost surely, 2^16216212 is an apocalyptic number.

16216212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16216212 is an abundant number, since it is smaller than the sum of its proper divisors (22645324).

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

16216212 is a wasteful number, since it uses less digits than its factorization.

16216212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36567 (or 36565 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 16216212 is about 4026.9358077824. The cubic root of 16216212 is about 253.1141771931.

Adding to 16216212 its reverse (21261261), we get a palindrome (37477473).

The spelling of 16216212 in words is "sixteen million, two hundred sixteen thousand, two hundred twelve".