2133424221 has 4 divisors (see below), whose sum is σ = 2844565632. Its totient is φ = 1422282812.

The previous prime is 2133424201. The next prime is 2133424229. The reversal of 2133424221 is 1224243312.

It is a happy number.

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 not a de Polignac number, because 2133424221 - 2¹¹ = 2133422173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2133424191 and 2133424200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133424229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355570701 + ... + 355570706.

It is an arithmetic number, because the mean of its divisors is an integer number (711141408).

Almost surely, 2^2133424221 is an apocalyptic number.

It is an amenable number.

2133424221 is a deficient number, since it is larger than the sum of its proper divisors (711141411).

2133424221 is an equidigital number, since it uses as much as digits as its factorization.

2133424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711141410.

The product of its digits is 2304, while the sum is 24.

The square root of 2133424221 is about 46189.0054125438. The cubic root of 2133424221 is about 1287.3374606890.

Adding to 2133424221 its reverse (1224243312), we get a palindrome (3357667533).

The spelling of 2133424221 in words is "two billion, one hundred thirty-three million, four hundred twenty-four thousand, two hundred twenty-one".