7332216521 has 8 divisors (see below), whose sum is σ = 8390840064. Its totient is φ = 6276384000.

The previous prime is 7332216511. The next prime is 7332216523. The reversal of 7332216521 is 1256122337.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7332216521 - 2¹⁰ = 7332215497 is a prime.

It is a super-2 number, since 2×7332216521² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7332216523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692120 + ... + 702633.

It is an arithmetic number, because the mean of its divisors is an integer number (1048855008).

Almost surely, 2^7332216521 is an apocalyptic number.

It is an amenable number.

7332216521 is a deficient number, since it is larger than the sum of its proper divisors (1058623543).

7332216521 is a wasteful number, since it uses less digits than its factorization.

7332216521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395511.

The product of its digits is 15120, while the sum is 32.

The square root of 7332216521 is about 85628.3628303146. The cubic root of 7332216521 is about 1942.7269300973.

Adding to 7332216521 its reverse (1256122337), we get a palindrome (8588338858).

The spelling of 7332216521 in words is "seven billion, three hundred thirty-two million, two hundred sixteen thousand, five hundred twenty-one".