11201122222 has 8 divisors (see below), whose sum is σ = 17532191376. Its totient is φ = 5357058432.

The previous prime is 11201122217. The next prime is 11201122241. The reversal of 11201122222 is 22222110211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11201122196 and 11201122205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121751283 + ... + 121751374.

It is an arithmetic number, because the mean of its divisors is an integer number (2191523922).

Almost surely, 2^11201122222 is an apocalyptic number.

11201122222 is a deficient number, since it is larger than the sum of its proper divisors (6331069154).

11201122222 is a wasteful number, since it uses less digits than its factorization.

11201122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243502682.

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

Adding to 11201122222 its reverse (22222110211), we get a palindrome (33423232433).

The spelling of 11201122222 in words is "eleven billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-two".