221232010 has 32 divisors (see below), whose sum is σ = 433641600. Its totient is φ = 80942400.

The previous prime is 221232001. The next prime is 221232031. The reversal of 221232010 is 10232122.

221232010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14566 + ... + 25585.

It is an arithmetic number, because the mean of its divisors is an integer number (13551300).

Almost surely, 2^221232010 is an apocalyptic number.

221232010 is a deficient number, since it is larger than the sum of its proper divisors (212409590).

221232010 is a wasteful number, since it uses less digits than its factorization.

221232010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40206.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221232010 is about 14873.8700411157. The cubic root of 221232010 is about 604.8058571567.

Adding to 221232010 its reverse (10232122), we get a palindrome (231464132).

The spelling of 221232010 in words is "two hundred twenty-one million, two hundred thirty-two thousand, ten".