20001022011193 has 2 divisors, whose sum is σ = 20001022011194. Its totient is φ = 20001022011192.

The previous prime is 20001022011181. The next prime is 20001022011221. The reversal of 20001022011193 is 39111022010002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17485711654464 + 2515310356729 = 4181592^2 + 1585973^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001022011193 - 2⁵ = 20001022011161 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001022018193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000511005596 + 10000511005597.

It is an arithmetic number, because the mean of its divisors is an integer number (10000511005597).

Almost surely, 2^{20001022011193} is an apocalyptic number.

It is an amenable number.

20001022011193 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001022011193 is an equidigital number, since it uses as much as digits as its factorization.

20001022011193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 20001022011193 its reverse (39111022010002), we get a palindrome (59112044021195).

The spelling of 20001022011193 in words is "twenty trillion, one billion, twenty-two million, eleven thousand, one hundred ninety-three".