221433052 has 36 divisors (see below), whose sum is σ = 407755656. Its totient is φ = 105207520.

The previous prime is 221433019. The next prime is 221433053. The reversal of 221433052 is 250334122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221433053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480102 + ... + 480562.

It is an arithmetic number, because the mean of its divisors is an integer number (11326546).

Almost surely, 2^221433052 is an apocalyptic number.

It is an amenable number.

221433052 is a deficient number, since it is larger than the sum of its proper divisors (186322604).

221433052 is a wasteful number, since it uses less digits than its factorization.

221433052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 221433052 is about 14880.6267341130. The cubic root of 221433052 is about 604.9890051049.

Adding to 221433052 its reverse (250334122), we get a palindrome (471767174).

The spelling of 221433052 in words is "two hundred twenty-one million, four hundred thirty-three thousand, fifty-two".