12200161 has 4 divisors (see below), whose sum is σ = 12293424. Its totient is φ = 12106900.

The previous prime is 12200137. The next prime is 12200171. The reversal of 12200161 is 16100221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12200161 - 2⁵ = 12200129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12200171) 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 3 ways as a sum of consecutive naturals, for example, 46435 + ... + 46696.

It is an arithmetic number, because the mean of its divisors is an integer number (3073356).

Almost surely, 2^12200161 is an apocalyptic number.

It is an amenable number.

12200161 is a deficient number, since it is larger than the sum of its proper divisors (93263).

12200161 is an equidigital number, since it uses as much as digits as its factorization.

12200161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93262.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12200161 is about 3492.8728863215. The cubic root of 12200161 is about 230.2087644544.

Adding to 12200161 its reverse (16100221), we get a palindrome (28300382).

The spelling of 12200161 in words is "twelve million, two hundred thousand, one hundred sixty-one".