12960121 has 4 divisors (see below), whose sum is σ = 13172644. Its totient is φ = 12747600.

The previous prime is 12960119. The next prime is 12960163. The reversal of 12960121 is 12106921.

12960121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 435600 + 12524521 = 660^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 12960121 - 2¹ = 12960119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12960092 and 12960101.

It is not an unprimeable number, because it can be changed into a prime (12960191) 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, 106170 + ... + 106291.

It is an arithmetic number, because the mean of its divisors is an integer number (3293161).

Almost surely, 2^12960121 is an apocalyptic number.

It is an amenable number.

12960121 is a deficient number, since it is larger than the sum of its proper divisors (212523).

12960121 is an equidigital number, since it uses as much as digits as its factorization.

12960121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212522.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 12960121 is about 3600.0168055163. The cubic root of 12960121 is about 234.8927894848.

The spelling of 12960121 in words is "twelve million, nine hundred sixty thousand, one hundred twenty-one".