20102111100001 has 8 divisors (see below), whose sum is σ = 23149214092224. Its totient is φ = 17098851316560.

The previous prime is 20102111099989. The next prime is 20102111100007. The reversal of 20102111100001 is 10000111120102.

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 20102111100001 - 2⁵ = 20102111099969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102111100007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10960801210 + ... + 10960803043.

It is an arithmetic number, because the mean of its divisors is an integer number (2893651761528).

Almost surely, 2^{20102111100001} is an apocalyptic number.

It is an amenable number.

20102111100001 is a deficient number, since it is larger than the sum of its proper divisors (3047102992223).

20102111100001 is a wasteful number, since it uses less digits than its factorization.

20102111100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21921604391.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20102111100001 its reverse (10000111120102), we get a palindrome (30102222220103).

The spelling of 20102111100001 in words is "twenty trillion, one hundred two billion, one hundred eleven million, one hundred thousand, one".