12100012 has 6 divisors (see below), whose sum is σ = 21175028. Its totient is φ = 6050004.

The previous prime is 12100003. The next prime is 12100057. The reversal of 12100012 is 21000121.

It is a junction number, because it is equal to n+sod(n) for n = 12099968 and 12100004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1512498 + ... + 1512505.

Almost surely, 2^12100012 is an apocalyptic number.

It is an amenable number.

12100012 is a deficient number, since it is larger than the sum of its proper divisors (9075016).

12100012 is a wasteful number, since it uses less digits than its factorization.

12100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025007 (or 3025005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 12100012 is about 3478.5071510635. The cubic root of 12100012 is about 229.5771183598.

Adding to 12100012 its reverse (21000121), we get a palindrome (33100133).

The spelling of 12100012 in words is "twelve million, one hundred thousand, twelve".