12176012121 has 24 divisors (see below), whose sum is σ = 20090940480. Its totient is φ = 6422510016.

The previous prime is 12176012111. The next prime is 12176012171. The reversal of 12176012121 is 12121067121.

It is not a de Polignac number, because 12176012121 - 2¹¹ = 12176010073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12176012091 and 12176012100.

It is not an unprimeable number, because it can be changed into a prime (12176012111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1711866 + ... + 1718963.

It is an arithmetic number, because the mean of its divisors is an integer number (837122520).

Almost surely, 2^12176012121 is an apocalyptic number.

It is an amenable number.

12176012121 is a deficient number, since it is larger than the sum of its proper divisors (7914928359).

12176012121 is a wasteful number, since it uses less digits than its factorization.

12176012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430865 (or 3430852 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 12176012121 its reverse (12121067121), we get a palindrome (24297079242).

The spelling of 12176012121 in words is "twelve billion, one hundred seventy-six million, twelve thousand, one hundred twenty-one".