212105027 has 2 divisors, whose sum is σ = 212105028. Its totient is φ = 212105026.

The previous prime is 212105021. The next prime is 212105051. The reversal of 212105027 is 720501212.

212105027 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 212105027 - 2²⁰ = 211056451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212105021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106052513 + 106052514.

It is an arithmetic number, because the mean of its divisors is an integer number (106052514).

Almost surely, 2^212105027 is an apocalyptic number.

212105027 is a deficient number, since it is larger than the sum of its proper divisors (1).

212105027 is an equidigital number, since it uses as much as digits as its factorization.

212105027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 212105027 is about 14563.8259739671. The cubic root of 212105027 is about 596.3716461614.

Adding to 212105027 its reverse (720501212), we get a palindrome (932606239).

The spelling of 212105027 in words is "two hundred twelve million, one hundred five thousand, twenty-seven".