20222200117897 has 2 divisors, whose sum is σ = 20222200117898. Its totient is φ = 20222200117896.

The previous prime is 20222200117831. The next prime is 20222200117937. The reversal of 20222200117897 is 79871100222202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19911041428041 + 311158689856 = 4462179^2 + 557816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222200117897 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222200117397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111100058948 + 10111100058949.

It is an arithmetic number, because the mean of its divisors is an integer number (10111100058949).

Almost surely, 2^{20222200117897} is an apocalyptic number.

It is an amenable number.

20222200117897 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222200117897 is an equidigital number, since it uses as much as digits as its factorization.

20222200117897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 20222200117897 in words is "twenty trillion, two hundred twenty-two billion, two hundred million, one hundred seventeen thousand, eight hundred ninety-seven".