111100222132400 has 120 divisors (see below), whose sum is σ = 268652275798224. Its totient is φ = 44151586790400.

The previous prime is 111100222132337. The next prime is 111100222132409. The reversal of 111100222132400 is 4231222001111.

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

It is not an unprimeable number, because it can be changed into a prime (111100222132409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182059790 + ... + 182669010.

Almost surely, 2^{111100222132400} is an apocalyptic number.

111100222132400 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 111100222132400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134326137899112).

111100222132400 is an abundant number, since it is smaller than the sum of its proper divisors (157552053665824).

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

111100222132400 is a wasteful number, since it uses less digits than its factorization.

111100222132400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612199 (or 612188 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111100222132400 its reverse (4231222001111), we get a palindrome (115331444133511).

The spelling of 111100222132400 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-two million, one hundred thirty-two thousand, four hundred".