216212027 has 2 divisors, whose sum is σ = 216212028. Its totient is φ = 216212026.

The previous prime is 216212021. The next prime is 216212047. The reversal of 216212027 is 720212612.

It is a happy number.

216212027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216212027 - 2¹⁸ = 215949883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216211993 and 216212011.

It is not a weakly prime, because it can be changed into another prime (216212021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108106013 + 108106014.

It is an arithmetic number, because the mean of its divisors is an integer number (108106014).

Almost surely, 2^216212027 is an apocalyptic number.

216212027 is a deficient number, since it is larger than the sum of its proper divisors (1).

216212027 is an equidigital number, since it uses as much as digits as its factorization.

216212027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 216212027 is about 14704.1499924341. The cubic root of 216212027 is about 600.1962570946.

Adding to 216212027 its reverse (720212612), we get a palindrome (936424639).

The spelling of 216212027 in words is "two hundred sixteen million, two hundred twelve thousand, twenty-seven".