20022200022197 has 2 divisors, whose sum is σ = 20022200022198. Its totient is φ = 20022200022196.

The previous prime is 20022200022161. The next prime is 20022200022203. The reversal of 20022200022197 is 79122000222002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12103204429156 + 7918995593041 = 3478966^2 + 2814071^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022200022197 - 2¹⁴ = 20022200005813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022200022107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011100011098 + 10011100011099.

It is an arithmetic number, because the mean of its divisors is an integer number (10011100011099).

Almost surely, 2^{20022200022197} is an apocalyptic number.

It is an amenable number.

20022200022197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022200022197 is an equidigital number, since it uses as much as digits as its factorization.

20022200022197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 20022200022197 its reverse (79122000222002), we get a palindrome (99144200244199).

The spelling of 20022200022197 in words is "twenty trillion, twenty-two billion, two hundred million, twenty-two thousand, one hundred ninety-seven".