12160206121 has 4 divisors (see below), whose sum is σ = 13897378432. Its totient is φ = 10423033812.

The previous prime is 12160206109. The next prime is 12160206127.

12160206121 is nontrivially palindromic in base 10.

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 12160206121 - 2¹⁵ = 12160173353 is a prime.

It is a super-2 number, since 2×12160206121² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12160206092 and 12160206101.

It is not an unprimeable number, because it can be changed into a prime (12160206127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868586145 + ... + 868586158.

It is an arithmetic number, because the mean of its divisors is an integer number (3474344608).

Almost surely, 2^12160206121 is an apocalyptic number.

It is an amenable number.

12160206121 is a deficient number, since it is larger than the sum of its proper divisors (1737172311).

12160206121 is an equidigital number, since it uses as much as digits as its factorization.

12160206121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737172310.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 12160206121 in words is "twelve billion, one hundred sixty million, two hundred six thousand, one hundred twenty-one".