21222362126363 has 2 divisors, whose sum is σ = 21222362126364. Its totient is φ = 21222362126362.

The previous prime is 21222362126347. The next prime is 21222362126437. The reversal of 21222362126363 is 36362126322212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222362126363 - 2⁴ = 21222362126347 is a prime.

It is a super-3 number, since 3×21222362126363³ (a number of 41 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21222362126363.

It is not a weakly prime, because it can be changed into another prime (21222362120363) 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, 10611181063181 + 10611181063182.

It is an arithmetic number, because the mean of its divisors is an integer number (10611181063182).

Almost surely, 2^{21222362126363} is an apocalyptic number.

21222362126363 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222362126363 is an equidigital number, since it uses as much as digits as its factorization.

21222362126363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 41.

Adding to 21222362126363 its reverse (36362126322212), we get a palindrome (57584488448575).

The spelling of 21222362126363 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred sixty-two million, one hundred twenty-six thousand, three hundred sixty-three".