221032010 has 16 divisors (see below), whose sum is σ = 398371176. Its totient is φ = 88298688.

The previous prime is 221032003. The next prime is 221032037. The reversal of 221032010 is 10230122.

It is a happy number.

221032010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 144696841 + 76335169 = 12029^2 + 8737^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221031982 and 221032000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5897 + ... + 21836.

Almost surely, 2^221032010 is an apocalyptic number.

221032010 is a deficient number, since it is larger than the sum of its proper divisors (177339166).

221032010 is a wasteful number, since it uses less digits than its factorization.

221032010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 221032010 is about 14867.1453211435. The cubic root of 221032010 is about 604.6235483360.

Adding to 221032010 its reverse (10230122), we get a palindrome (231262132).

The spelling of 221032010 in words is "two hundred twenty-one million, thirty-two thousand, ten".