12206971 has 8 divisors (see below), whose sum is σ = 14291424. Its totient is φ = 10207680.

The previous prime is 12206939. The next prime is 12206989. The reversal of 12206971 is 17960221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12206971 - 2⁵ = 12206939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12206371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20980 + ... + 21553.

It is an arithmetic number, because the mean of its divisors is an integer number (1786428).

Almost surely, 2^12206971 is an apocalyptic number.

12206971 is a deficient number, since it is larger than the sum of its proper divisors (2084453).

12206971 is an equidigital number, since it uses as much as digits as its factorization.

12206971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42581.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12206971 is about 3493.8475925547. The cubic root of 12206971 is about 230.2515898477.

The spelling of 12206971 in words is "twelve million, two hundred six thousand, nine hundred seventy-one".