22252012421543 has 2 divisors, whose sum is σ = 22252012421544. Its totient is φ = 22252012421542.

The previous prime is 22252012421473. The next prime is 22252012421549. The reversal of 22252012421543 is 34512421025222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22252012421543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252012421549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126006210771 + 11126006210772.

It is an arithmetic number, because the mean of its divisors is an integer number (11126006210772).

Almost surely, 2^{22252012421543} is an apocalyptic number.

22252012421543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252012421543 is an equidigital number, since it uses as much as digits as its factorization.

22252012421543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 22252012421543 its reverse (34512421025222), we get a palindrome (56764433446765).

The spelling of 22252012421543 in words is "twenty-two trillion, two hundred fifty-two billion, twelve million, four hundred twenty-one thousand, five hundred forty-three".