20021100110107 has 2 divisors, whose sum is σ = 20021100110108. Its totient is φ = 20021100110106.

The previous prime is 20021100110071. The next prime is 20021100110149. The reversal of 20021100110107 is 70101100112002.

Together with previous prime (20021100110071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021100110107 - 2³¹ = 20018952626459 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021100410107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010550055053 + 10010550055054.

It is an arithmetic number, because the mean of its divisors is an integer number (10010550055054).

Almost surely, 2^{20021100110107} is an apocalyptic number.

20021100110107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021100110107 is an equidigital number, since it uses as much as digits as its factorization.

20021100110107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 20021100110107 its reverse (70101100112002), we get a palindrome (90122200222109).

The spelling of 20021100110107 in words is "twenty trillion, twenty-one billion, one hundred million, one hundred ten thousand, one hundred seven".