5340216221 has 4 divisors (see below), whose sum is σ = 5345965500. Its totient is φ = 5334466944.

The previous prime is 5340216191. The next prime is 5340216229. The reversal of 5340216221 is 1226120435.

It is a happy number.

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 403608100 + 4936608121 = 20090^2 + 70261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5340216221 - 2⁶ = 5340216157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5340216229) 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, 2873246 + ... + 2875103.

It is an arithmetic number, because the mean of its divisors is an integer number (1336491375).

Almost surely, 2^5340216221 is an apocalyptic number.

It is an amenable number.

5340216221 is a deficient number, since it is larger than the sum of its proper divisors (5749279).

5340216221 is an equidigital number, since it uses as much as digits as its factorization.

5340216221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749278.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5340216221 is about 73076.7830504326. The cubic root of 5340216221 is about 1747.9122009087.

Adding to 5340216221 its reverse (1226120435), we get a palindrome (6566336656).

The spelling of 5340216221 in words is "five billion, three hundred forty million, two hundred sixteen thousand, two hundred twenty-one".