20022110220197 has 2 divisors, whose sum is σ = 20022110220198. Its totient is φ = 20022110220196.

The previous prime is 20022110220179. The next prime is 20022110220289. The reversal of 20022110220197 is 79102201122002.

Together with previous prime (20022110220179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16092541425601 + 3929568794596 = 4011551^2 + 1982314^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022110220197 - 2²⁸ = 20021841784741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022110220127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011055110098 + 10011055110099.

It is an arithmetic number, because the mean of its divisors is an integer number (10011055110099).

Almost surely, 2^{20022110220197} is an apocalyptic number.

It is an amenable number.

20022110220197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022110220197 is an equidigital number, since it uses as much as digits as its factorization.

20022110220197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 20022110220197 its reverse (79102201122002), we get a palindrome (99124311342199).

The spelling of 20022110220197 in words is "twenty trillion, twenty-two billion, one hundred ten million, two hundred twenty thousand, one hundred ninety-seven".