111222401200 has 120 divisors (see below), whose sum is σ = 268661465280. Its totient is φ = 44248377600.

The previous prime is 111222400921. The next prime is 111222401207. The reversal of 111222401200 is 2104222111.

It is a super-2 number, since 2×111222401200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (111222401207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70796415 + ... + 70797985.

It is an arithmetic number, because the mean of its divisors is an integer number (2238845544).

Almost surely, 2^111222401200 is an apocalyptic number.

111222401200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111222401200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134330732640).

111222401200 is an abundant number, since it is smaller than the sum of its proper divisors (157439064080).

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

111222401200 is a wasteful number, since it uses less digits than its factorization.

111222401200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2424 counting only the distinct ones).

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

Adding to 111222401200 its reverse (2104222111), we get a palindrome (113326623311).

The spelling of 111222401200 in words is "one hundred eleven billion, two hundred twenty-two million, four hundred one thousand, two hundred".