22121341434427 has 2 divisors, whose sum is σ = 22121341434428. Its totient is φ = 22121341434426.

The previous prime is 22121341434329. The next prime is 22121341434481. The reversal of 22121341434427 is 72443414312122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22121341434427 - 2¹⁹ = 22121340910139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22121341434427.

It is not a weakly prime, because it can be changed into another prime (22121341464427) 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 as a sum of consecutive naturals, namely, 11060670717213 + 11060670717214.

It is an arithmetic number, because the mean of its divisors is an integer number (11060670717214).

Almost surely, 2^{22121341434427} is an apocalyptic number.

22121341434427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121341434427 is an equidigital number, since it uses as much as digits as its factorization.

22121341434427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 40.

Adding to 22121341434427 its reverse (72443414312122), we get a palindrome (94564755746549).

The spelling of 22121341434427 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred forty-one million, four hundred thirty-four thousand, four hundred twenty-seven".