12142012 has 12 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 5713856.

The previous prime is 12142001. The next prime is 12142019. The reversal of 12142012 is 21024121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12141983 and 12142001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89212 + ... + 89347.

It is an arithmetic number, because the mean of its divisors is an integer number (1874880).

Almost surely, 2^12142012 is an apocalyptic number.

It is an amenable number.

12142012 is a deficient number, since it is larger than the sum of its proper divisors (10356548).

12142012 is a wasteful number, since it uses less digits than its factorization.

12142012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178580 (or 178578 counting only the distinct ones).

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

The square root of 12142012 is about 3484.5389938986. The cubic root of 12142012 is about 229.8424377698.

Adding to 12142012 its reverse (21024121), we get a palindrome (33166133).

The spelling of 12142012 in words is "twelve million, one hundred forty-two thousand, twelve".