216000212 has 6 divisors (see below), whose sum is σ = 378000378. Its totient is φ = 108000104.

The previous prime is 216000193. The next prime is 216000217. The reversal of 216000212 is 212000612.

It can be written as a sum of positive squares in only one way, i.e., 111429136 + 104571076 = 10556^2 + 10226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216000217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27000023 + ... + 27000030.

It is an arithmetic number, because the mean of its divisors is an integer number (63000063).

Almost surely, 2^216000212 is an apocalyptic number.

It is an amenable number.

216000212 is a deficient number, since it is larger than the sum of its proper divisors (162000166).

216000212 is a wasteful number, since it uses less digits than its factorization.

216000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54000057 (or 54000055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 216000212 is about 14696.9456690838. The cubic root of 216000212 is about 600.0001962962. Note that the first 3 decimals are identical.

Adding to 216000212 its reverse (212000612), we get a palindrome (428000824).

The spelling of 216000212 in words is "two hundred sixteen million, two hundred twelve", and thus it is an aban number.