12271038 has 16 divisors (see below), whose sum is σ = 26430096. Its totient is φ = 3775680.

The previous prime is 12271027. The next prime is 12271069. The reversal of 12271038 is 83017221.

It is a junction number, because it is equal to n+sod(n) for n = 12270999 and 12271017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78583 + ... + 78738.

It is an arithmetic number, because the mean of its divisors is an integer number (1651881).

Almost surely, 2^12271038 is an apocalyptic number.

12271038 is an abundant number, since it is smaller than the sum of its proper divisors (14159058).

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

12271038 is a wasteful number, since it uses less digits than its factorization.

12271038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157339.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12271038 is about 3503.0041393067. The cubic root of 12271038 is about 230.6537042437.

Adding to 12271038 its reverse (83017221), we get a palindrome (95288259).

The spelling of 12271038 in words is "twelve million, two hundred seventy-one thousand, thirty-eight".