22222201112222 has 16 divisors (see below), whose sum is σ = 33831064538640. Its totient is φ = 10945182059328.

The previous prime is 22222201112213. The next prime is 22222201112227. The reversal of 22222201112222 is 22221110222222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222201112227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20119154 + ... + 21194922.

It is an arithmetic number, because the mean of its divisors is an integer number (2114441533665).

Almost surely, 2^{22222201112222} is an apocalyptic number.

22222201112222 is a deficient number, since it is larger than the sum of its proper divisors (11608863426418).

22222201112222 is a wasteful number, since it uses less digits than its factorization.

22222201112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229995.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22222201112222 its reverse (22221110222222), we get a palindrome (44443311334444).

The spelling of 22222201112222 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred twenty-two".