220214321 has 4 divisors (see below), whose sum is σ = 225585444. Its totient is φ = 214843200.

The previous prime is 220214303. The next prime is 220214339. The reversal of 220214321 is 123412022.

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 (220214303) and next prime (220214339).

It can be written as a sum of positive squares in 2 ways, for example, as 126337600 + 93876721 = 11240^2 + 9689^2 .

It is a cyclic number.

It is not a de Polignac number, because 220214321 - 2²² = 216020017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220214321.

It is not an unprimeable number, because it can be changed into a prime (220214341) 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, 2685500 + ... + 2685581.

It is an arithmetic number, because the mean of its divisors is an integer number (56396361).

Almost surely, 2^220214321 is an apocalyptic number.

It is an amenable number.

220214321 is a deficient number, since it is larger than the sum of its proper divisors (5371123).

220214321 is an equidigital number, since it uses as much as digits as its factorization.

220214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371122.

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

The square root of 220214321 is about 14839.6199749185. The cubic root of 220214321 is about 603.8770426801.

Adding to 220214321 its reverse (123412022), we get a palindrome (343626343).

The spelling of 220214321 in words is "two hundred twenty million, two hundred fourteen thousand, three hundred twenty-one".