111212412 has 24 divisors (see below), whose sum is σ = 263152512. Its totient is φ = 36548400.

The previous prime is 111212393. The next prime is 111212441. The reversal of 111212412 is 214212111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111212391 and 111212400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64414 + ... + 66117.

It is an arithmetic number, because the mean of its divisors is an integer number (10964688).

Almost surely, 2^111212412 is an apocalyptic number.

111212412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111212412 is an abundant number, since it is smaller than the sum of its proper divisors (151940100).

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

111212412 is a wasteful number, since it uses less digits than its factorization.

111212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130609 (or 130607 counting only the distinct ones).

The product of its digits is 32, while the sum is 15.

The square root of 111212412 is about 10545.7295622446. The cubic root of 111212412 is about 480.8959135546.

Adding to 111212412 its reverse (214212111), we get a palindrome (325424523).

The spelling of 111212412 in words is "one hundred eleven million, two hundred twelve thousand, four hundred twelve".