111412421100 has 108 divisors (see below), whose sum is σ = 349844577264. Its totient is φ = 29656506240.

The previous prime is 111412421047. The next prime is 111412421111. The reversal of 111412421100 is 1124214111.

111412421100 is a `hidden beast` number, since 1 + 1 + 141 + 2 + 421 + 100 = 666.

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

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 390177 + ... + 612423.

Almost surely, 2^111412421100 is an apocalyptic number.

111412421100 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 111412421100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174922288632).

111412421100 is an abundant number, since it is smaller than the sum of its proper divisors (238432156164).

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

111412421100 is a wasteful number, since it uses less digits than its factorization.

111412421100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222824 (or 222814 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111412421100 its reverse (1124214111), we get a palindrome (112536635211).

The spelling of 111412421100 in words is "one hundred eleven billion, four hundred twelve million, four hundred twenty-one thousand, one hundred".