20110200122197 has 2 divisors, whose sum is σ = 20110200122198. Its totient is φ = 20110200122196.

The previous prime is 20110200122189. The next prime is 20110200122249. The reversal of 20110200122197 is 79122100201102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20046877935876 + 63322186321 = 4477374^2 + 251639^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110200122197 - 2³ = 20110200122189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110200126197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055100061098 + 10055100061099.

It is an arithmetic number, because the mean of its divisors is an integer number (10055100061099).

Almost surely, 2^{20110200122197} is an apocalyptic number.

It is an amenable number.

20110200122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110200122197 is an equidigital number, since it uses as much as digits as its factorization.

20110200122197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 20110200122197 its reverse (79122100201102), we get a palindrome (99232300323299).

The spelling of 20110200122197 in words is "twenty trillion, one hundred ten billion, two hundred million, one hundred twenty-two thousand, one hundred ninety-seven".