20010112102021 has 8 divisors (see below), whose sum is σ = 20046066944544. Its totient is φ = 19974176727120.

The previous prime is 20010112102009. The next prime is 20010112102031. The reversal of 20010112102021 is 12020121101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010112102021 - 2³⁹ = 19460356288133 is a prime.

It is a super-2 number, since 2×20010112102021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010112101992 and 20010112102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010112102031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2808546 + ... + 6921571.

It is an arithmetic number, because the mean of its divisors is an integer number (2505758368068).

Almost surely, 2^{20010112102021} is an apocalyptic number.

It is an amenable number.

20010112102021 is a deficient number, since it is larger than the sum of its proper divisors (35954842523).

20010112102021 is an equidigital number, since it uses as much as digits as its factorization.

20010112102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733811.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20010112102021 its reverse (12020121101002), we get a palindrome (32030233203023).

The spelling of 20010112102021 in words is "twenty trillion, ten billion, one hundred twelve million, one hundred two thousand, twenty-one".