212333223 has 8 divisors (see below), whose sum is σ = 283178736. Its totient is φ = 141521600.

The previous prime is 212333221. The next prime is 212333249. The reversal of 212333223 is 322333212.

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 212333223 - 2¹ = 212333221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212333223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333221) 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 7 ways as a sum of consecutive naturals, for example, 17713 + ... + 27173.

It is an arithmetic number, because the mean of its divisors is an integer number (35397342).

Almost surely, 2^212333223 is an apocalyptic number.

212333223 is a deficient number, since it is larger than the sum of its proper divisors (70845513).

212333223 is an equidigital number, since it uses as much as digits as its factorization.

212333223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16945.

The product of its digits is 1296, while the sum is 21.

The square root of 212333223 is about 14571.6582103754. The cubic root of 212333223 is about 596.5854409507.

Adding to 212333223 its reverse (322333212), we get a palindrome (534666435).

The spelling of 212333223 in words is "two hundred twelve million, three hundred thirty-three thousand, two hundred twenty-three".