20202422321197 has 2 divisors, whose sum is σ = 20202422321198. Its totient is φ = 20202422321196.

The previous prime is 20202422321167. The next prime is 20202422321209. The reversal of 20202422321197 is 79112322420202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18985766994756 + 1216655326441 = 4357266^2 + 1103021^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202422321197 - 2⁷ = 20202422321069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202422321117) 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, 10101211160598 + 10101211160599.

It is an arithmetic number, because the mean of its divisors is an integer number (10101211160599).

Almost surely, 2^{20202422321197} is an apocalyptic number.

It is an amenable number.

20202422321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202422321197 is an equidigital number, since it uses as much as digits as its factorization.

20202422321197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 20202422321197 its reverse (79112322420202), we get a palindrome (99314744741399).

The spelling of 20202422321197 in words is "twenty trillion, two hundred two billion, four hundred twenty-two million, three hundred twenty-one thousand, one hundred ninety-seven".