12214161 has 6 divisors (see below), whose sum is σ = 17642690. Its totient is φ = 8142768.

The previous prime is 12214159. The next prime is 12214171. The reversal of 12214161 is 16141221.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 207936 = 3465^2 + 456^2 .

It is not a de Polignac number, because 12214161 - 2¹ = 12214159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12214171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678556 + ... + 678573.

Almost surely, 2^12214161 is an apocalyptic number.

It is an amenable number.

12214161 is a deficient number, since it is larger than the sum of its proper divisors (5428529).

12214161 is a wasteful number, since it uses less digits than its factorization.

12214161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357135 (or 1357132 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 12214161 is about 3494.8763926640. The cubic root of 12214161 is about 230.2967876286.

Adding to 12214161 its reverse (16141221), we get a palindrome (28355382).

The spelling of 12214161 in words is "twelve million, two hundred fourteen thousand, one hundred sixty-one".