20111222110222 has 16 divisors (see below), whose sum is σ = 31482957222432. Its totient is φ = 9617028664320.

The previous prime is 20111222110207. The next prime is 20111222110229. The reversal of 20111222110222 is 22201122211102.

It is a super-2 number, since 2×20111222110222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20111222110222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111222110229) 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, 31083363 + ... + 31723774.

It is an arithmetic number, because the mean of its divisors is an integer number (1967684826402).

Almost surely, 2^{20111222110222} is an apocalyptic number.

20111222110222 is a deficient number, since it is larger than the sum of its proper divisors (11371735112210).

20111222110222 is a wasteful number, since it uses less digits than its factorization.

20111222110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62814123.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20111222110222 its reverse (22201122211102), we get a palindrome (42312344321324).

The spelling of 20111222110222 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-two".