221013032 has 16 divisors (see below), whose sum is σ = 414838260. Its totient is φ = 110389504.

The previous prime is 221013029. The next prime is 221013047. The reversal of 221013032 is 230310122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 212168356 + 8844676 = 14566^2 + 2974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221012998 and 221013016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6323 + ... + 21954.

Almost surely, 2^221013032 is an apocalyptic number.

It is an amenable number.

221013032 is a deficient number, since it is larger than the sum of its proper divisors (193825228).

221013032 is a wasteful number, since it uses less digits than its factorization.

221013032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29260 (or 29256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 221013032 is about 14866.5070544496. The cubic root of 221013032 is about 604.6062433401.

Adding to 221013032 its reverse (230310122), we get a palindrome (451323154).

The spelling of 221013032 in words is "two hundred twenty-one million, thirteen thousand, thirty-two".