12001512 has 32 divisors (see below), whose sum is σ = 30170880. Its totient is φ = 3978240.

The previous prime is 12001511. The next prime is 12001523. The reversal of 12001512 is 21510021.

It is a super-2 number, since 2×12001512² = 288072580572288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12001511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3337 + ... + 5927.

It is an arithmetic number, because the mean of its divisors is an integer number (942840).

Almost surely, 2^12001512 is an apocalyptic number.

12001512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001512 is an abundant number, since it is smaller than the sum of its proper divisors (18169368).

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

12001512 is a wasteful number, since it uses less digits than its factorization.

12001512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12001512 is about 3464.3198466654. The cubic root of 12001512 is about 228.9524637065.

Adding to 12001512 its reverse (21510021), we get a palindrome (33511533).

The spelling of 12001512 in words is "twelve million, one thousand, five hundred twelve".