21202222110239 has 2 divisors, whose sum is σ = 21202222110240. Its totient is φ = 21202222110238.

The previous prime is 21202222110211. The next prime is 21202222110257. The reversal of 21202222110239 is 93201122220212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202222110239 - 2⁸ = 21202222109983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202222110439) 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, 10601111055119 + 10601111055120.

It is an arithmetic number, because the mean of its divisors is an integer number (10601111055120).

Almost surely, 2^{21202222110239} is an apocalyptic number.

21202222110239 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202222110239 is an equidigital number, since it uses as much as digits as its factorization.

21202222110239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 21202222110239 in words is "twenty-one trillion, two hundred two billion, two hundred twenty-two million, one hundred ten thousand, two hundred thirty-nine".