220221205 has 8 divisors (see below), whose sum is σ = 275755392. Its totient is φ = 168517008.

The previous prime is 220221193. The next prime is 220221223. The reversal of 220221205 is 502122022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220221205 - 2⁵ = 220221173 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 957369 + ... + 957598.

It is an arithmetic number, because the mean of its divisors is an integer number (34469424).

Almost surely, 2^220221205 is an apocalyptic number.

It is an amenable number.

220221205 is a deficient number, since it is larger than the sum of its proper divisors (55534187).

220221205 is a wasteful number, since it uses less digits than its factorization.

220221205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914995.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 220221205 is about 14839.8519197464. The cubic root of 220221205 is about 603.8833351050.

Adding to 220221205 its reverse (502122022), we get a palindrome (722343227).

The spelling of 220221205 in words is "two hundred twenty million, two hundred twenty-one thousand, two hundred five".