12652041021 has 8 divisors (see below), whose sum is σ = 16907816640. Its totient is φ = 8415479712.

The previous prime is 12652040993. The next prime is 12652041029. The reversal of 12652041021 is 12014025621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12652041021 - 2⁶ = 12652040957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12652040982 and 12652041000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652041029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4802040 + ... + 4804673.

It is an arithmetic number, because the mean of its divisors is an integer number (2113477080).

Almost surely, 2^12652041021 is an apocalyptic number.

It is an amenable number.

12652041021 is a deficient number, since it is larger than the sum of its proper divisors (4255775619).

12652041021 is an equidigital number, since it uses as much as digits as its factorization.

12652041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607155.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12652041021 its reverse (12014025621), we get a palindrome (24666066642).

The spelling of 12652041021 in words is "twelve billion, six hundred fifty-two million, forty-one thousand, twenty-one".