212034223 has 4 divisors (see below), whose sum is σ = 214416720. Its totient is φ = 209651728.

The previous prime is 212034191. The next prime is 212034233. The reversal of 212034223 is 322430212.

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 212034223 - 2⁵ = 212034191 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 212034223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212034233) 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, 1191115 + ... + 1191292.

It is an arithmetic number, because the mean of its divisors is an integer number (53604180).

Almost surely, 2^212034223 is an apocalyptic number.

212034223 is a deficient number, since it is larger than the sum of its proper divisors (2382497).

212034223 is an equidigital number, since it uses as much as digits as its factorization.

212034223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382496.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 212034223 is about 14561.3949537810. The cubic root of 212034223 is about 596.3052793587.

Adding to 212034223 its reverse (322430212), we get a palindrome (534464435).

The spelling of 212034223 in words is "two hundred twelve million, thirty-four thousand, two hundred twenty-three".