Why 'sudo ls *' failed where 'ls *' runs successfully in the directory which have many files on RHEL6.1

Issue

Please let me know about Error itself?

• What is the reason why 'sudo ls *' to check many files failed?
• How to avoid error when we run 'sudo ls *' to check many files?
• We also see similar error by running 'sudo rm *' , does this error occur whenever running any command with sudo to many files?
• Can we use find command to avoid this Error?

sudo find /home/user -print0 | xargs -0 sudo ls

• What error code should be expected when running sudo command?
• Please let me know about error code from ls.