220312222 has 16 divisors (see below), whose sum is σ = 357284592. Its totient is φ = 101283840.

The previous prime is 220312187. The next prime is 220312237. The reversal of 220312222 is 222213022.

220312222 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 = 220312196 and 220312205.

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, 9804 + ... + 23167.

It is an arithmetic number, because the mean of its divisors is an integer number (22330287).

Almost surely, 2^220312222 is an apocalyptic number.

220312222 is a deficient number, since it is larger than the sum of its proper divisors (136972370).

220312222 is a wasteful number, since it uses less digits than its factorization.

220312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33243.

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

The square root of 220312222 is about 14842.9182440651. The cubic root of 220312222 is about 603.9665182528.

Adding to 220312222 its reverse (222213022), we get a palindrome (442525244).

The spelling of 220312222 in words is "two hundred twenty million, three hundred twelve thousand, two hundred twenty-two".