12771012 has 24 divisors (see below), whose sum is σ = 31552416. Its totient is φ = 4006528.

The previous prime is 12771007. The next prime is 12771013. The reversal of 12771012 is 21017721.

It is a happy number.

12771012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12771012.

It is not an unprimeable number, because it can be changed into a prime (12771013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31098 + ... + 31505.

It is an arithmetic number, because the mean of its divisors is an integer number (1314684).

Almost surely, 2^12771012 is an apocalyptic number.

12771012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12771012 is an abundant number, since it is smaller than the sum of its proper divisors (18781404).

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

12771012 is a wasteful number, since it uses less digits than its factorization.

12771012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62627 (or 62625 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 12771012 is about 3573.6552715672. The cubic root of 12771012 is about 233.7446992802.

Adding to 12771012 its reverse (21017721), we get a palindrome (33788733).

The spelling of 12771012 in words is "twelve million, seven hundred seventy-one thousand, twelve".