12972012 has 24 divisors (see below), whose sum is σ = 31245312. Its totient is φ = 4184400.

The previous prime is 12972007. The next prime is 12972067. The reversal of 12972012 is 21027921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17064 + ... + 17807.

It is an arithmetic number, because the mean of its divisors is an integer number (1301888).

Almost surely, 2^12972012 is an apocalyptic number.

12972012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12972012 is an abundant number, since it is smaller than the sum of its proper divisors (18273300).

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

12972012 is a wasteful number, since it uses less digits than its factorization.

12972012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34909 (or 34907 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12972012 is about 3601.6679469379. The cubic root of 12972012 is about 234.9646061076.

Adding to 12972012 its reverse (21027921), we get a palindrome (33999933).

The spelling of 12972012 in words is "twelve million, nine hundred seventy-two thousand, twelve".