11221110222 has 64 divisors (see below), whose sum is σ = 26229381120. Its totient is φ = 3133575936.

The previous prime is 11221110209. The next prime is 11221110301. The reversal of 11221110222 is 22201112211.

It is a super-2 number, since 2×11221110222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1633018 + ... + 1639874.

It is an arithmetic number, because the mean of its divisors is an integer number (409834080).

Almost surely, 2^11221110222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11221110222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13114690560).

11221110222 is an abundant number, since it is smaller than the sum of its proper divisors (15008270898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221110222 is a wasteful number, since it uses less digits than its factorization.

11221110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221110222 its reverse (22201112211), we get a palindrome (33422222433).

The spelling of 11221110222 in words is "eleven billion, two hundred twenty-one million, one hundred ten thousand, two hundred twenty-two".