21222123013303 has 2 divisors, whose sum is σ = 21222123013304. Its totient is φ = 21222123013302.

The previous prime is 21222123013243. The next prime is 21222123013309. The reversal of 21222123013303 is 30331032122212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21222123013303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21222123013309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611061506651 + 10611061506652.

It is an arithmetic number, because the mean of its divisors is an integer number (10611061506652).

Almost surely, 2^{21222123013303} is an apocalyptic number.

21222123013303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222123013303 is an equidigital number, since it uses as much as digits as its factorization.

21222123013303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21222123013303 its reverse (30331032122212), we get a palindrome (51553155135515).

The spelling of 21222123013303 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty-three million, thirteen thousand, three hundred three".