22221303424457 has 2 divisors, whose sum is σ = 22221303424458. Its totient is φ = 22221303424456.

The previous prime is 22221303424249. The next prime is 22221303424499. The reversal of 22221303424457 is 75442430312222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19737618831616 + 2483684592841 = 4442704^2 + 1575971^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221303424457 - 2¹⁰ = 22221303423433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22221303124457) 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, 11110651712228 + 11110651712229.

It is an arithmetic number, because the mean of its divisors is an integer number (11110651712229).

Almost surely, 2^{22221303424457} is an apocalyptic number.

It is an amenable number.

22221303424457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221303424457 is an equidigital number, since it uses as much as digits as its factorization.

22221303424457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 41.

Adding to 22221303424457 its reverse (75442430312222), we get a palindrome (97663733736679).

The spelling of 22221303424457 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred three million, four hundred twenty-four thousand, four hundred fifty-seven".