111424212 has 36 divisors (see below), whose sum is σ = 283885056. Its totient is φ = 36847440.

The previous prime is 111424193. The next prime is 111424219. The reversal of 111424212 is 212424111.

It is a tau number, because it is divible by the number of its divisors (36).

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111424219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7614 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (7885696).

Almost surely, 2^111424212 is an apocalyptic number.

111424212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111424212 is an abundant number, since it is smaller than the sum of its proper divisors (172460844).

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

111424212 is a wasteful number, since it uses less digits than its factorization.

111424212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24508 (or 24503 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 111424212 is about 10555.7667651384. The cubic root of 111424212 is about 481.2010028938.

Adding to 111424212 its reverse (212424111), we get a palindrome (323848323).

The spelling of 111424212 in words is "one hundred eleven million, four hundred twenty-four thousand, two hundred twelve".