212329217 has 8 divisors (see below), whose sum is σ = 215485536. Its totient is φ = 209192832.

The previous prime is 212329211. The next prime is 212329223. The reversal of 212329217 is 712923212.

It is an interprime number because it is at equal distance from previous prime (212329211) and next prime (212329223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212329217 - 2⁶ = 212329153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212329217.

It is not an unprimeable number, because it can be changed into a prime (212329211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17198 + ... + 26840.

It is an arithmetic number, because the mean of its divisors is an integer number (26935692).

Almost surely, 2^212329217 is an apocalyptic number.

It is an amenable number.

212329217 is a deficient number, since it is larger than the sum of its proper divisors (3156319).

212329217 is an equidigital number, since it uses as much as digits as its factorization.

212329217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9967.

The product of its digits is 3024, while the sum is 29.

The square root of 212329217 is about 14571.5207511090. The cubic root of 212329217 is about 596.5816890864.

The spelling of 212329217 in words is "two hundred twelve million, three hundred twenty-nine thousand, two hundred seventeen".