212424323233 has 4 divisors (see below), whose sum is σ = 212434298388. Its totient is φ = 212414348080.

The previous prime is 212424323183. The next prime is 212424323257. The reversal of 212424323233 is 332323424212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201737519104 + 10686804129 = 449152^2 + 103377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212424323233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212424323195 and 212424323204.

It is not an unprimeable number, because it can be changed into a prime (212424323273) 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, 4955566 + ... + 4998247.

It is an arithmetic number, because the mean of its divisors is an integer number (53108574597).

Almost surely, 2^212424323233 is an apocalyptic number.

It is an amenable number.

212424323233 is a deficient number, since it is larger than the sum of its proper divisors (9975155).

212424323233 is an equidigital number, since it uses as much as digits as its factorization.

212424323233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975154.

The product of its digits is 41472, while the sum is 31.

Adding to 212424323233 its reverse (332323424212), we get a palindrome (544747747445).

The spelling of 212424323233 in words is "two hundred twelve billion, four hundred twenty-four million, three hundred twenty-three thousand, two hundred thirty-three".