5235422221 has 4 divisors (see below), whose sum is σ = 5543388252. Its totient is φ = 4927456192.

The previous prime is 5235422207. The next prime is 5235422239. The reversal of 5235422221 is 1222245325.

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 2551664196 + 2683758025 = 50514^2 + 51805^2 .

It is a cyclic number.

It is not a de Polignac number, because 5235422221 - 2¹¹ = 5235420173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5235422221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5235492221) 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 3 ways as a sum of consecutive naturals, for example, 153982990 + ... + 153983023.

It is an arithmetic number, because the mean of its divisors is an integer number (1385847063).

Almost surely, 2^5235422221 is an apocalyptic number.

It is an amenable number.

5235422221 is a deficient number, since it is larger than the sum of its proper divisors (307966031).

5235422221 is a wasteful number, since it uses less digits than its factorization.

5235422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307966030.

The product of its digits is 9600, while the sum is 28.

The square root of 5235422221 is about 72356.2175697431. The cubic root of 5235422221 is about 1736.4031725368.

Adding to 5235422221 its reverse (1222245325), we get a palindrome (6457667546).

The spelling of 5235422221 in words is "five billion, two hundred thirty-five million, four hundred twenty-two thousand, two hundred twenty-one".