20010122222263 has 2 divisors, whose sum is σ = 20010122222264. Its totient is φ = 20010122222262.

The previous prime is 20010122222213. The next prime is 20010122222353. The reversal of 20010122222263 is 36222222101002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010122222263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010122222213) 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, 10005061111131 + 10005061111132.

It is an arithmetic number, because the mean of its divisors is an integer number (10005061111132).

Almost surely, 2^{20010122222263} is an apocalyptic number.

20010122222263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010122222263 is an equidigital number, since it uses as much as digits as its factorization.

20010122222263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20010122222263 its reverse (36222222101002), we get a palindrome (56232344323265).

The spelling of 20010122222263 in words is "twenty trillion, ten billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred sixty-three".