12041402621 has 2 divisors, whose sum is σ = 12041402622. Its totient is φ = 12041402620.

The previous prime is 12041402603. The next prime is 12041402629. The reversal of 12041402621 is 12620414021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11976019225 + 65383396 = 109435^2 + 8086^2 .

It is an emirp because it is prime and its reverse (12620414021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12041402621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12041402629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020701310 + 6020701311.

It is an arithmetic number, because the mean of its divisors is an integer number (6020701311).

Almost surely, 2^12041402621 is an apocalyptic number.

It is an amenable number.

12041402621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041402621 is an equidigital number, since it uses as much as digits as its factorization.

12041402621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12041402621 its reverse (12620414021), we get a palindrome (24661816642).

The spelling of 12041402621 in words is "twelve billion, forty-one million, four hundred two thousand, six hundred twenty-one".