12121160 has 16 divisors (see below), whose sum is σ = 27272700. Its totient is φ = 4848448.

The previous prime is 12121157. The next prime is 12121211. The reversal of 12121160 is 6112121.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 925444 = 3346^2 + 962^2 .

It is an unprimeable number.

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, 151475 + ... + 151554.

Almost surely, 2^12121160 is an apocalyptic number.

12121160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121160 is an abundant number, since it is smaller than the sum of its proper divisors (15151540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121160 is a wasteful number, since it uses less digits than its factorization.

12121160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303040 (or 303036 counting only the distinct ones).

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

The square root of 12121160 is about 3481.5456337667. The cubic root of 12121160 is about 229.7107896078.

Adding to 12121160 its reverse (6112121), we get a palindrome (18233281).

The spelling of 12121160 in words is "twelve million, one hundred twenty-one thousand, one hundred sixty".