212000231 has 4 divisors (see below), whose sum is σ = 212133600. Its totient is φ = 211866864.

The previous prime is 212000219. The next prime is 212000267. The reversal of 212000231 is 132000212.

It is a happy number.

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 212000231 - 2²⁶ = 144891367 is a prime.

It is a super-2 number, since 2×212000231² = 89888195888106722, which contains 22 as substring.

It is a Duffinian number.

212000231 is a modest number, since divided by 231 gives 212 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64271 + ... + 67488.

It is an arithmetic number, because the mean of its divisors is an integer number (53033400).

Almost surely, 2^212000231 is an apocalyptic number.

212000231 is a deficient number, since it is larger than the sum of its proper divisors (133369).

212000231 is a wasteful number, since it uses less digits than its factorization.

212000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133368.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 212000231 is about 14560.2277111314. The cubic root of 212000231 is about 596.2734123452.

Adding to 212000231 its reverse (132000212), we get a palindrome (344000443).

The spelling of 212000231 in words is "two hundred twelve million, two hundred thirty-one", and thus it is an aban number.