12041410021 has 2 divisors, whose sum is σ = 12041410022. Its totient is φ = 12041410020.

The previous prime is 12041410009. The next prime is 12041410039. The reversal of 12041410021 is 12001414021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10300017121 + 1741392900 = 101489^2 + 41730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12041410021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12041409977 and 12041410004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12041410621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020705010 + 6020705011.

It is an arithmetic number, because the mean of its divisors is an integer number (6020705011).

Almost surely, 2^12041410021 is an apocalyptic number.

It is an amenable number.

12041410021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041410021 is an equidigital number, since it uses as much as digits as its factorization.

12041410021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12041410021 its reverse (12001414021), we get a palindrome (24042824042).

The spelling of 12041410021 in words is "twelve billion, forty-one million, four hundred ten thousand, twenty-one".