12271994 has 16 divisors (see below), whose sum is σ = 22275648. Its totient is φ = 4949952.

The previous prime is 12271969. The next prime is 12271999. The reversal of 12271994 is 49917221.

It is not an unprimeable number, because it can be changed into a prime (12271999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25544 + ... + 26019.

It is an arithmetic number, because the mean of its divisors is an integer number (1392228).

Almost surely, 2^12271994 is an apocalyptic number.

12271994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12271994 is a deficient number, since it is larger than the sum of its proper divisors (10003654).

12271994 is a wasteful number, since it uses less digits than its factorization.

12271994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51589.

The product of its digits is 9072, while the sum is 35.

The square root of 12271994 is about 3503.1405909555. The cubic root of 12271994 is about 230.6596939357.

The spelling of 12271994 in words is "twelve million, two hundred seventy-one thousand, nine hundred ninety-four".