11221102222 has 24 divisors (see below), whose sum is σ = 18684126216. Its totient is φ = 5049990000.

The previous prime is 11221102171. The next prime is 11221102223. The reversal of 11221102222 is 22220112211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11221102196 and 11221102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221102223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205104 + ... + 253987.

It is an arithmetic number, because the mean of its divisors is an integer number (778505259).

Almost surely, 2^11221102222 is an apocalyptic number.

11221102222 is a deficient number, since it is larger than the sum of its proper divisors (7463023994).

11221102222 is a wasteful number, since it uses less digits than its factorization.

11221102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459216 (or 459205 counting only the distinct ones).

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

Adding to 11221102222 its reverse (22220112211), we get a palindrome (33441214433).

The spelling of 11221102222 in words is "eleven billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty-two".