20222012222197 has 2 divisors, whose sum is σ = 20222012222198. Its totient is φ = 20222012222196.

The previous prime is 20222012222141. The next prime is 20222012222221. The reversal of 20222012222197 is 79122221022202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20137889600676 + 84122621521 = 4487526^2 + 290039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222012222197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222012223197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111006111098 + 10111006111099.

It is an arithmetic number, because the mean of its divisors is an integer number (10111006111099).

Almost surely, 2^{20222012222197} is an apocalyptic number.

It is an amenable number.

20222012222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222012222197 is an equidigital number, since it uses as much as digits as its factorization.

20222012222197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 20222012222197 its reverse (79122221022202), we get a palindrome (99344233244399).

The spelling of 20222012222197 in words is "twenty trillion, two hundred twenty-two billion, twelve million, two hundred twenty-two thousand, one hundred ninety-seven".