111412401212 has 48 divisors (see below), whose sum is σ = 233093210112. Its totient is φ = 45558163200.

The previous prime is 111412401131. The next prime is 111412401241. The reversal of 111412401212 is 212104214111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42533 + ... + 473955.

It is an arithmetic number, because the mean of its divisors is an integer number (4856108544).

Almost surely, 2^111412401212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111412401212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116546605056).

111412401212 is an abundant number, since it is smaller than the sum of its proper divisors (121680808900).

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

111412401212 is a wasteful number, since it uses less digits than its factorization.

111412401212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431858 (or 431856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111412401212 its reverse (212104214111), we get a palindrome (323516615323).

The spelling of 111412401212 in words is "one hundred eleven billion, four hundred twelve million, four hundred one thousand, two hundred twelve".