201110122222 has 4 divisors (see below), whose sum is σ = 301665183336. Its totient is φ = 100555061110.

The previous prime is 201110122183. The next prime is 201110122231. The reversal of 201110122222 is 222221011102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 201110122196 and 201110122205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277530554 + ... + 50277530557.

It is an arithmetic number, because the mean of its divisors is an integer number (75416295834).

Almost surely, 2^201110122222 is an apocalyptic number.

201110122222 is a deficient number, since it is larger than the sum of its proper divisors (100555061114).

201110122222 is a wasteful number, since it uses less digits than its factorization.

201110122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100555061113.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201110122222 its reverse (222221011102), we get a palindrome (423331133324).

The spelling of 201110122222 in words is "two hundred one billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty-two".