12161201 has 8 divisors (see below), whose sum is σ = 13152384. Its totient is φ = 11178000.

The previous prime is 12161189. The next prime is 12161213. The reversal of 12161201 is 10216121.

It is an interprime number because it is at equal distance from previous prime (12161189) and next prime (12161213).

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

It is a cyclic number.

It is not a de Polignac number, because 12161201 - 2¹⁰ = 12160177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12161251) 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 7 ways as a sum of consecutive naturals, for example, 1400 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (1644048).

Almost surely, 2^12161201 is an apocalyptic number.

It is an amenable number.

12161201 is a deficient number, since it is larger than the sum of its proper divisors (991183).

12161201 is a wasteful number, since it uses less digits than its factorization.

12161201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 12161201 is about 3487.2913557660. The cubic root of 12161201 is about 229.9634535504.

Adding to 12161201 its reverse (10216121), we get a palindrome (22377322).

It can be divided in two parts, 1216120 and 1, that added together give a palindrome (1216121).

The spelling of 12161201 in words is "twelve million, one hundred sixty-one thousand, two hundred one".