112111212 has 48 divisors (see below), whose sum is σ = 265984992. Its totient is φ = 36748800.

The previous prime is 112111211. The next prime is 112111213. The reversal of 112111212 is 212111211.

It is an interprime number because it is at equal distance from previous prime (112111211) and next prime (112111213).

It is a super-2 number, since 2×112111212² = 25137847712217888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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

It is not an unprimeable number, because it can be changed into a prime (112111211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282198 + ... + 282594.

It is an arithmetic number, because the mean of its divisors is an integer number (5541354).

Almost surely, 2^112111212 is an apocalyptic number.

112111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112111212 is an abundant number, since it is smaller than the sum of its proper divisors (153873780).

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

112111212 is a wasteful number, since it uses less digits than its factorization.

112111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its digits is 8, while the sum is 12.

The square root of 112111212 is about 10588.2582137007. The cubic root of 112111212 is about 482.1879457359.

Adding to 112111212 its reverse (212111211), we get a palindrome (324222423).

Subtracting 112111212 from its reverse (212111211), we obtain a palindrome (99999999).

The spelling of 112111212 in words is "one hundred twelve million, one hundred eleven thousand, two hundred twelve".