212323233 has 12 divisors (see below), whose sum is σ = 298783248. Its totient is φ = 134098200.

The previous prime is 212323229. The next prime is 212323259. The reversal of 212323233 is 332323212.

It is not a de Polignac number, because 212323233 - 2² = 212323229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212323283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96943 + ... + 99108.

It is an arithmetic number, because the mean of its divisors is an integer number (24898604).

Almost surely, 2^212323233 is an apocalyptic number.

It is an amenable number.

212323233 is a deficient number, since it is larger than the sum of its proper divisors (86460015).

212323233 is a wasteful number, since it uses less digits than its factorization.

212323233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196092 (or 196073 counting only the distinct ones).

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

The square root of 212323233 is about 14571.3154176279. The cubic root of 212323233 is about 596.5760846161.

Subtracting from 212323233 its sum of digits (21), we obtain a palindrome (212323212).

Adding to 212323233 its reverse (332323212), we get a palindrome (544646445).

The spelling of 212323233 in words is "two hundred twelve million, three hundred twenty-three thousand, two hundred thirty-three".