212000027 has 4 divisors (see below), whose sum is σ = 212417040. Its totient is φ = 211583016.

The previous prime is 212000021. The next prime is 212000029. The reversal of 212000027 is 720000212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212000027 - 2¹⁴ = 211983643 is a prime.

It is a super-2 number, since 2×212000027² = 89888022896001458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211999975 and 212000020.

It is not an unprimeable number, because it can be changed into a prime (212000021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207743 + ... + 208760.

It is an arithmetic number, because the mean of its divisors is an integer number (53104260).

Almost surely, 2^212000027 is an apocalyptic number.

212000027 is a deficient number, since it is larger than the sum of its proper divisors (417013).

212000027 is an equidigital number, since it uses as much as digits as its factorization.

212000027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417012.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 212000027 is about 14560.2207057448. The cubic root of 212000027 is about 596.2732210879.

Adding to 212000027 its reverse (720000212), we get a palindrome (932000239).

The spelling of 212000027 in words is "two hundred twelve million, twenty-seven", and thus it is an aban number.