20201020122223 has 2 divisors, whose sum is σ = 20201020122224. Its totient is φ = 20201020122222.

The previous prime is 20201020122221. The next prime is 20201020122271. The reversal of 20201020122223 is 32222102010202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201020122223 - 2¹ = 20201020122221 is a prime.

Together with 20201020122221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20201020122223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201020122221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100510061111 + 10100510061112.

It is an arithmetic number, because the mean of its divisors is an integer number (10100510061112).

Almost surely, 2^{20201020122223} is an apocalyptic number.

20201020122223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201020122223 is an equidigital number, since it uses as much as digits as its factorization.

20201020122223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20201020122223 its reverse (32222102010202), we get a palindrome (52423122132425).

The spelling of 20201020122223 in words is "twenty trillion, two hundred one billion, twenty million, one hundred twenty-two thousand, two hundred twenty-three".