212342233 has 8 divisors (see below), whose sum is σ = 233236800. Its totient is φ = 192419568.

The previous prime is 212342209. The next prime is 212342237. The reversal of 212342233 is 332243212.

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 212342233 - 2⁵ = 212342201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212342237) 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, 242518 + ... + 243391.

It is an arithmetic number, because the mean of its divisors is an integer number (29154600).

Almost surely, 2^212342233 is an apocalyptic number.

212342233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212342233 is a deficient number, since it is larger than the sum of its proper divisors (20894567).

212342233 is a wasteful number, since it uses less digits than its factorization.

212342233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485951.

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

The square root of 212342233 is about 14571.9673688902. The cubic root of 212342233 is about 596.5938791950.

Adding to 212342233 its reverse (332243212), we get a palindrome (544585445).

The spelling of 212342233 in words is "two hundred twelve million, three hundred forty-two thousand, two hundred thirty-three".