12127772 has 12 divisors (see below), whose sum is σ = 21249480. Its totient is φ = 6056496.

The previous prime is 12127769. The next prime is 12127793. The reversal of 12127772 is 27772121.

It is a congruent number.

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, 3683 + ... + 6149.

It is an arithmetic number, because the mean of its divisors is an integer number (1770790).

Almost surely, 2^12127772 is an apocalyptic number.

It is an amenable number.

12127772 is a deficient number, since it is larger than the sum of its proper divisors (9121708).

12127772 is a wasteful number, since it uses less digits than its factorization.

12127772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700 (or 3698 counting only the distinct ones).

The product of its digits is 2744, while the sum is 29.

The square root of 12127772 is about 3482.4950825522. The cubic root of 12127772 is about 229.7525505078.

Adding to 12127772 its reverse (27772121), we get a palindrome (39899893).

The spelling of 12127772 in words is "twelve million, one hundred twenty-seven thousand, seven hundred seventy-two".