224221066 has 32 divisors (see below), whose sum is σ = 357540480. Its totient is φ = 105247296.

The previous prime is 224221051. The next prime is 224221079. The reversal of 224221066 is 660122422.

It is a self number, because there is not a number n which added to its sum of digits gives 224221066.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987645 + ... + 987871.

It is an arithmetic number, because the mean of its divisors is an integer number (11173140).

Almost surely, 2^224221066 is an apocalyptic number.

224221066 is a deficient number, since it is larger than the sum of its proper divisors (133319414).

224221066 is a wasteful number, since it uses less digits than its factorization.

224221066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 224221066 is about 14974.0130225668. The cubic root of 224221066 is about 607.5175163595.

Adding to 224221066 its reverse (660122422), we get a palindrome (884343488).

The spelling of 224221066 in words is "two hundred twenty-four million, two hundred twenty-one thousand, sixty-six".