12421144302227 has 2 divisors, whose sum is σ = 12421144302228. Its totient is φ = 12421144302226.

The previous prime is 12421144302181. The next prime is 12421144302241. The reversal of 12421144302227 is 72220344112421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12421144302227 - 2⁸ = 12421144301971 is a prime.

It is not a weakly prime, because it can be changed into another prime (12421144302257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210572151113 + 6210572151114.

It is an arithmetic number, because the mean of its divisors is an integer number (6210572151114).

Almost surely, 2^{12421144302227} is an apocalyptic number.

12421144302227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421144302227 is an equidigital number, since it uses as much as digits as its factorization.

12421144302227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 35.

Adding to 12421144302227 its reverse (72220344112421), we get a palindrome (84641488414648).

The spelling of 12421144302227 in words is "twelve trillion, four hundred twenty-one billion, one hundred forty-four million, three hundred two thousand, two hundred twenty-seven".