12272371 has 4 divisors (see below), whose sum is σ = 12312144. Its totient is φ = 12232600.

The previous prime is 12272357. The next prime is 12272383. The reversal of 12272371 is 17327221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17327221 = 19 ⋅911959.

It is a cyclic number.

It is not a de Polignac number, because 12272371 - 2⁹ = 12271859 is a prime.

It is a super-2 number, since 2×12272371² = 301222179923282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12272321) 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, 19420 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (3078036).

Almost surely, 2^12272371 is an apocalyptic number.

12272371 is a deficient number, since it is larger than the sum of its proper divisors (39773).

12272371 is an equidigital number, since it uses as much as digits as its factorization.

12272371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39772.

The product of its digits is 1176, while the sum is 25.

The square root of 12272371 is about 3503.1943994018. The cubic root of 12272371 is about 230.6620558940.

Adding to 12272371 its reverse (17327221), we get a palindrome (29599592).

The spelling of 12272371 in words is "twelve million, two hundred seventy-two thousand, three hundred seventy-one".