12652142602121 has 12 divisors (see below), whose sum is σ = 13908308445696. Its totient is φ = 11500783392120.

The previous prime is 12652142602069. The next prime is 12652142602133. The reversal of 12652142602121 is 12120624125621.

It is a de Polignac number, because none of the positive numbers 2^k-12652142602121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12652142602171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4091585 + ... + 6484238.

It is an arithmetic number, because the mean of its divisors is an integer number (1159025703808).

Almost surely, 2^{12652142602121} is an apocalyptic number.

12652142602121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12652142602121 is a deficient number, since it is larger than the sum of its proper divisors (1256165843575).

12652142602121 is a wasteful number, since it uses less digits than its factorization.

12652142602121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585732 (or 10585721 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 12652142602121 its reverse (12120624125621), we get a palindrome (24772766727742).

The spelling of 12652142602121 in words is "twelve trillion, six hundred fifty-two billion, one hundred forty-two million, six hundred two thousand, one hundred twenty-one".