221084224 has 28 divisors (see below), whose sum is σ = 440944000. Its totient is φ = 109980288.

The previous prime is 221084221. The next prime is 221084233. The reversal of 221084224 is 422480122.

It is not an unprimeable number, because it can be changed into a prime (221084221) 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, 4057 + ... + 21415.

It is an arithmetic number, because the mean of its divisors is an integer number (15748000).

Almost surely, 2^221084224 is an apocalyptic number.

It is an amenable number.

221084224 is a deficient number, since it is larger than the sum of its proper divisors (219859776).

221084224 is a wasteful number, since it uses less digits than its factorization.

221084224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17570 (or 17560 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 221084224 is about 14868.9012371459. The cubic root of 221084224 is about 604.6711543040.

The spelling of 221084224 in words is "two hundred twenty-one million, eighty-four thousand, two hundred twenty-four".