12272124 has 12 divisors (see below), whose sum is σ = 28634984. Its totient is φ = 4090704.

The previous prime is 12272093. The next prime is 12272129. The reversal of 12272124 is 42127221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12272124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511327 + ... + 511350.

Almost surely, 2^12272124 is an apocalyptic number.

It is an amenable number.

12272124 is an abundant number, since it is smaller than the sum of its proper divisors (16362860).

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

12272124 is a wasteful number, since it uses less digits than its factorization.

12272124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022684 (or 1022682 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 12272124 is about 3503.1591456855. The cubic root of 12272124 is about 230.6605084096.

Adding to 12272124 its reverse (42127221), we get a palindrome (54399345).

The spelling of 12272124 in words is "twelve million, two hundred seventy-two thousand, one hundred twenty-four".