221220110222 has 16 divisors (see below), whose sum is σ = 332540415744. Its totient is φ = 110373516000.

The previous prime is 221220110219. The next prime is 221220110231. The reversal of 221220110222 is 222011022122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221220110222.

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, 2091347 + ... + 2194577.

It is an arithmetic number, because the mean of its divisors is an integer number (20783775984).

Almost surely, 2^221220110222 is an apocalyptic number.

221220110222 is a deficient number, since it is larger than the sum of its proper divisors (111320305522).

221220110222 is a wasteful number, since it uses less digits than its factorization.

221220110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105515.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221220110222 its reverse (222011022122), we get a palindrome (443231132344).

The spelling of 221220110222 in words is "two hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two hundred twenty-two".