12042112 has 16 divisors (see below), whose sum is σ = 23990400. Its totient is φ = 6020992.

The previous prime is 12042109. The next prime is 12042113. The reversal of 12042112 is 21124021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×12042112² = 290024922841088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12042092 and 12042101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46912 + ... + 47167.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2^12042112 is an apocalyptic number.

It is an amenable number.

12042112 is a deficient number, since it is larger than the sum of its proper divisors (11948288).

12042112 is an frugal number, since it uses more digits than its factorization.

12042112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94093 (or 94081 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12042112 is about 3470.1746353750. The cubic root of 12042112 is about 229.2103480958.

Adding to 12042112 its reverse (21124021), we get a palindrome (33166133).

The spelling of 12042112 in words is "twelve million, forty-two thousand, one hundred twelve".