212324233 has 4 divisors (see below), whose sum is σ = 231626448. Its totient is φ = 193022020.

The previous prime is 212324227. The next prime is 212324249. The reversal of 212324233 is 332423212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212324233 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212324263) 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, 9651091 + ... + 9651112.

It is an arithmetic number, because the mean of its divisors is an integer number (57906612).

Almost surely, 2^212324233 is an apocalyptic number.

It is an amenable number.

212324233 is a deficient number, since it is larger than the sum of its proper divisors (19302215).

212324233 is a wasteful number, since it uses less digits than its factorization.

212324233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19302214.

The product of its digits is 1728, while the sum is 22.

The square root of 212324233 is about 14571.3497315794. The cubic root of 212324233 is about 596.5770211994.

Adding to 212324233 its reverse (332423212), we get a palindrome (544747445).

The spelling of 212324233 in words is "two hundred twelve million, three hundred twenty-four thousand, two hundred thirty-three".