220321222 has 32 divisors (see below), whose sum is σ = 368582400. Its totient is φ = 97927200.

The previous prime is 220321201. The next prime is 220321229. The reversal of 220321222 is 222123022.

220321222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220321196 and 220321205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220321229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348847 + ... + 349477.

It is an arithmetic number, because the mean of its divisors is an integer number (11518200).

Almost surely, 2^220321222 is an apocalyptic number.

220321222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220321222 is a deficient number, since it is larger than the sum of its proper divisors (148261178).

220321222 is a wasteful number, since it uses less digits than its factorization.

220321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220321222 is about 14843.2214158517. The cubic root of 220321222 is about 603.9747423761.

Adding to 220321222 its reverse (222123022), we get a palindrome (442444244).

The spelling of 220321222 in words is "two hundred twenty million, three hundred twenty-one thousand, two hundred twenty-two".