111222214400 has 432 divisors, whose sum is σ = 320267001600. Its totient is φ = 37792972800.

The previous prime is 111222214381. The next prime is 111222214409. The reversal of 111222214400 is 4412222111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222214409) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 238162967 + ... + 238163433.

It is an arithmetic number, because the mean of its divisors is an integer number (741358800).

Almost surely, 2^111222214400 is an apocalyptic number.

111222214400 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 111222214400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160133500800).

111222214400 is an abundant number, since it is smaller than the sum of its proper divisors (209044787200).

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

111222214400 is a wasteful number, since it uses less digits than its factorization.

111222214400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111222214400 its reverse (4412222111), we get a palindrome (115634436511).

The spelling of 111222214400 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred fourteen thousand, four hundred".