20111120002101 has 16 divisors (see below), whose sum is σ = 27065674368000. Its totient is φ = 13281991725168.

The previous prime is 20111120002003. The next prime is 20111120002139. The reversal of 20111120002101 is 10120002111102.

It is not a de Polignac number, because 20111120002101 - 2¹¹ = 20111120000053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111620002101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49430100 + ... + 49835298.

It is an arithmetic number, because the mean of its divisors is an integer number (1691604648000).

Almost surely, 2^{20111120002101} is an apocalyptic number.

It is an amenable number.

20111120002101 is a deficient number, since it is larger than the sum of its proper divisors (6954554365899).

20111120002101 is a wasteful number, since it uses less digits than its factorization.

20111120002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559928.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111120002101 its reverse (10120002111102), we get a palindrome (30231122113203).

The spelling of 20111120002101 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, two thousand, one hundred one".