12272197 has 16 divisors (see below), whose sum is σ = 14713600. Its totient is φ = 10224144.

The previous prime is 12272167. The next prime is 12272231. The reversal of 12272197 is 79127221.

It is a happy number.

It is not a de Polignac number, because 12272197 - 2⁷ = 12272069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272167) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12208 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (919600).

Almost surely, 2^12272197 is an apocalyptic number.

It is an amenable number.

12272197 is a deficient number, since it is larger than the sum of its proper divisors (2441403).

12272197 is an frugal number, since it uses more digits than its factorization.

12272197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1011 counting only the distinct ones).

The product of its digits is 3528, while the sum is 31.

The square root of 12272197 is about 3503.1695648370. The cubic root of 12272197 is about 230.6609657655.

The spelling of 12272197 in words is "twelve million, two hundred seventy-two thousand, one hundred ninety-seven".