11022223122 has 128 divisors (see below), whose sum is σ = 26697496320. Its totient is φ = 3357619200.

The previous prime is 11022223081. The next prime is 11022223187. The reversal of 11022223122 is 22132222011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11022223095 and 11022223104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4912933 + ... + 4915175.

It is an arithmetic number, because the mean of its divisors is an integer number (208574190).

Almost surely, 2^11022223122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11022223122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13348748160).

11022223122 is an abundant number, since it is smaller than the sum of its proper divisors (15675273198).

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

11022223122 is a wasteful number, since it uses less digits than its factorization.

11022223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11022223122 its reverse (22132222011), we get a palindrome (33154445133).

The spelling of 11022223122 in words is "eleven billion, twenty-two million, two hundred twenty-three thousand, one hundred twenty-two".