221363332 has 6 divisors (see below), whose sum is σ = 387385838. Its totient is φ = 110681664.

The previous prime is 221363323. The next prime is 221363333. The reversal of 221363332 is 233363122.

It can be written as a sum of positive squares in only one way, i.e., 220700736 + 662596 = 14856^2 + 814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221363297 and 221363306.

It is not an unprimeable number, because it can be changed into a prime (221363333) 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 as a sum of consecutive naturals, namely, 27670413 + ... + 27670420.

Almost surely, 2^221363332 is an apocalyptic number.

It is an amenable number.

221363332 is a deficient number, since it is larger than the sum of its proper divisors (166022506).

221363332 is a wasteful number, since it uses less digits than its factorization.

221363332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55340837 (or 55340835 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

The square root of 221363332 is about 14878.2839064188. The cubic root of 221363332 is about 604.9255032011.

The spelling of 221363332 in words is "two hundred twenty-one million, three hundred sixty-three thousand, three hundred thirty-two".