20102211119993 has 2 divisors, whose sum is σ = 20102211119994. Its totient is φ = 20102211119992.

The previous prime is 20102211119957. The next prime is 20102211120011. The reversal of 20102211119993 is 39991111220102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17675230372864 + 2426980747129 = 4204192^2 + 1557877^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102211119993 - 2¹⁸ = 20102210857849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102211119993.

It is not a weakly prime, because it can be changed into another prime (20102211119933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051105559996 + 10051105559997.

It is an arithmetic number, because the mean of its divisors is an integer number (10051105559997).

Almost surely, 2^{20102211119993} is an apocalyptic number.

It is an amenable number.

20102211119993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102211119993 is an equidigital number, since it uses as much as digits as its factorization.

20102211119993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 41.

The spelling of 20102211119993 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred nineteen thousand, nine hundred ninety-three".