12151112 has 16 divisors (see below), whose sum is σ = 23313840. Its totient is φ = 5934096.

The previous prime is 12151103. The next prime is 12151147. The reversal of 12151112 is 21115121.

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 in 3 ways as a sum of consecutive naturals, for example, 17318 + ... + 18005.

It is an arithmetic number, because the mean of its divisors is an integer number (1457115).

Almost surely, 2^12151112 is an apocalyptic number.

It is an amenable number.

12151112 is a deficient number, since it is larger than the sum of its proper divisors (11162728).

12151112 is a wasteful number, since it uses less digits than its factorization.

12151112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35372 (or 35368 counting only the distinct ones).

The product of its digits is 20, while the sum is 14.

The square root of 12151112 is about 3485.8445174735. The cubic root of 12151112 is about 229.8998429699.

Adding to 12151112 its reverse (21115121), we get a palindrome (33266233).

The spelling of 12151112 in words is "twelve million, one hundred fifty-one thousand, one hundred twelve".