20121101112101 has 8 divisors (see below), whose sum is σ = 21970374744864. Its totient is φ = 18275174583120.

The previous prime is 20121101112097. The next prime is 20121101112107. The reversal of 20121101112101 is 10121110112102.

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 20121101112101 - 2² = 20121101112097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121101112107) 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, 836763371 + ... + 836787416.

It is an arithmetic number, because the mean of its divisors is an integer number (2746296843108).

Almost surely, 2^{20121101112101} is an apocalyptic number.

It is an amenable number.

20121101112101 is a deficient number, since it is larger than the sum of its proper divisors (1849273632763).

20121101112101 is a wasteful number, since it uses less digits than its factorization.

20121101112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673551891.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20121101112101 its reverse (10121110112102), we get a palindrome (30242211224203).

Subtracting from 20121101112101 its reverse (10121110112102), we obtain a palindrome (9999990999999).

It can be divided in two parts, 20121101 and 112101, that added together give a palindrome (20233202).

The spelling of 20121101112101 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, one hundred twelve thousand, one hundred one".