12272001 has 24 divisors (see below), whose sum is σ = 19655424. Its totient is φ = 6783840.

The previous prime is 12271999. The next prime is 12272003. The reversal of 12272001 is 10027221.

It is an interprime number because it is at equal distance from previous prime (12271999) and next prime (12272003).

It is not a de Polignac number, because 12272001 - 2¹ = 12271999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12272003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3211 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (818976).

Almost surely, 2^12272001 is an apocalyptic number.

It is an amenable number.

12272001 is a deficient number, since it is larger than the sum of its proper divisors (7383423).

12272001 is a wasteful number, since it uses less digits than its factorization.

12272001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 12272001 is about 3503.1415900588. The cubic root of 12272001 is about 230.6597377922.

Adding to 12272001 its reverse (10027221), we get a palindrome (22299222).

The spelling of 12272001 in words is "twelve million, two hundred seventy-two thousand, one".