20222200121993 has 2 divisors, whose sum is σ = 20222200121994. Its totient is φ = 20222200121992.

The previous prime is 20222200121987. The next prime is 20222200122017. The reversal of 20222200121993 is 39912100222202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18295397945344 + 1926802176649 = 4277312^2 + 1388093^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222200121993 - 2¹² = 20222200117897 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222200421993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111100060996 + 10111100060997.

It is an arithmetic number, because the mean of its divisors is an integer number (10111100060997).

Almost surely, 2^{20222200121993} is an apocalyptic number.

It is an amenable number.

20222200121993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222200121993 is an equidigital number, since it uses as much as digits as its factorization.

20222200121993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 20222200121993 in words is "twenty trillion, two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, nine hundred ninety-three".