212000331 has 4 divisors (see below), whose sum is σ = 282667112. Its totient is φ = 141333552.

The previous prime is 212000323. The next prime is 212000339. The reversal of 212000331 is 133000212.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (212000323) and next prime (212000339).

It is not a de Polignac number, because 212000331 - 2³ = 212000323 is a prime.

It is a super-2 number, since 2×212000331² = 89888280688219122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212000339) 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, 35333386 + ... + 35333391.

It is an arithmetic number, because the mean of its divisors is an integer number (70666778).

Almost surely, 2^212000331 is an apocalyptic number.

212000331 is a deficient number, since it is larger than the sum of its proper divisors (70666781).

212000331 is an equidigital number, since it uses as much as digits as its factorization.

212000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70666780.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 212000331 is about 14560.2311451433. The cubic root of 212000331 is about 596.2735060988.

Adding to 212000331 its reverse (133000212), we get a palindrome (345000543).

The spelling of 212000331 in words is "two hundred twelve million, three hundred thirty-one", and thus it is an aban number.