12020112 has 60 divisors (see below), whose sum is σ = 36232924. Its totient is φ = 3697920.

The previous prime is 12020083. The next prime is 12020119. The reversal of 12020112 is 21102021.

12020112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 9511056 = 1584^2 + 3084^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12020094 and 12020103.

It is not an unprimeable number, because it can be changed into a prime (12020119) 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, 1339 + ... + 5082.

Almost surely, 2^12020112 is an apocalyptic number.

12020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12020112 is an abundant number, since it is smaller than the sum of its proper divisors (24212812).

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

12020112 is a wasteful number, since it uses less digits than its factorization.

12020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448 (or 6439 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12020112 is about 3467.0033169872. The cubic root of 12020112 is about 229.0706798602.

Adding to 12020112 its reverse (21102021), we get a palindrome (33122133).

The spelling of 12020112 in words is "twelve million, twenty thousand, one hundred twelve".