220314221 has 4 divisors (see below), whose sum is σ = 221922492. Its totient is φ = 218705952.

The previous prime is 220314209. The next prime is 220314233. The reversal of 220314221 is 122413022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (220314209) and next prime (220314233).

It can be written as a sum of positive squares in 2 ways, for example, as 143664196 + 76650025 = 11986^2 + 8755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220314221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220314221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220314251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803930 + ... + 804203.

It is an arithmetic number, because the mean of its divisors is an integer number (55480623).

Almost surely, 2^220314221 is an apocalyptic number.

It is an amenable number.

220314221 is a deficient number, since it is larger than the sum of its proper divisors (1608271).

220314221 is a wasteful number, since it uses less digits than its factorization.

220314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608270.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220314221 is about 14842.9855824224. The cubic root of 220314221 is about 603.9683449413.

Adding to 220314221 its reverse (122413022), we get a palindrome (342727243).

The spelling of 220314221 in words is "two hundred twenty million, three hundred fourteen thousand, two hundred twenty-one".