11221022222 has 16 divisors (see below), whose sum is σ = 17006146080. Its totient is φ = 5552429472.

The previous prime is 11221022207. The next prime is 11221022231. The reversal of 11221022222 is 22222012211.

It is a happy number.

11221022222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221022222² (a number of 21 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 11221022222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155783 + ... + 216125.

It is an arithmetic number, because the mean of its divisors is an integer number (1062884130).

Almost surely, 2^11221022222 is an apocalyptic number.

11221022222 is a deficient number, since it is larger than the sum of its proper divisors (5785123858).

11221022222 is a wasteful number, since it uses less digits than its factorization.

11221022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61307.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11221022222 its reverse (22222012211), we get a palindrome (33443034433).

The spelling of 11221022222 in words is "eleven billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-two".