20010112021127 has 2 divisors, whose sum is σ = 20010112021128. Its totient is φ = 20010112021126.

The previous prime is 20010112021111. The next prime is 20010112021157. The reversal of 20010112021127 is 72112021101002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20010112021127 - 2⁴ = 20010112021111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20010112021099 and 20010112021108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010112021157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005056010563 + 10005056010564.

It is an arithmetic number, because the mean of its divisors is an integer number (10005056010564).

Almost surely, 2^{20010112021127} is an apocalyptic number.

20010112021127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010112021127 is an equidigital number, since it uses as much as digits as its factorization.

20010112021127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 20010112021127 its reverse (72112021101002), we get a palindrome (92122133122129).

The spelling of 20010112021127 in words is "twenty trillion, ten billion, one hundred twelve million, twenty-one thousand, one hundred twenty-seven".