221450210 has 32 divisors (see below), whose sum is σ = 417111552. Its totient is φ = 84490560.

The previous prime is 221450189. The next prime is 221450221. The reversal of 221450210 is 12054122.

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, 95687 + ... + 97973.

It is an arithmetic number, because the mean of its divisors is an integer number (13034736).

Almost surely, 2^221450210 is an apocalyptic number.

221450210 is a deficient number, since it is larger than the sum of its proper divisors (195661342).

221450210 is a wasteful number, since it uses less digits than its factorization.

221450210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 221450210 is about 14881.2032443617. The cubic root of 221450210 is about 605.0046307958.

The spelling of 221450210 in words is "two hundred twenty-one million, four hundred fifty thousand, two hundred ten".