12271912 has 16 divisors (see below), whose sum is σ = 23179860. Its totient is φ = 6090624.

The previous prime is 12271879. The next prime is 12271951. The reversal of 12271912 is 21917221.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 119716 = 3486^2 + 346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4503 + ... + 6694.

Almost surely, 2^12271912 is an apocalyptic number.

It is an amenable number.

12271912 is a deficient number, since it is larger than the sum of its proper divisors (10907948).

12271912 is a wasteful number, since it uses less digits than its factorization.

12271912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340 (or 11336 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 12271912 is about 3503.1288871522. The cubic root of 12271912 is about 230.6591801877.

The spelling of 12271912 in words is "twelve million, two hundred seventy-one thousand, nine hundred twelve".