20112102021101 has 4 divisors (see below), whose sum is σ = 20112367922400. Its totient is φ = 20111836119804.

The previous prime is 20112102021079. The next prime is 20112102021119. The reversal of 20112102021101 is 10112020121102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20112102021101 - 2³⁴ = 20094922151917 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 (20112102021191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132837161 + ... + 132988478.

It is an arithmetic number, because the mean of its divisors is an integer number (5028091980600).

Almost surely, 2^{20112102021101} is an apocalyptic number.

It is an amenable number.

20112102021101 is a deficient number, since it is larger than the sum of its proper divisors (265901299).

20112102021101 is an equidigital number, since it uses as much as digits as its factorization.

20112102021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265901298.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20112102021101 its reverse (10112020121102), we get a palindrome (30224122142203).

The spelling of 20112102021101 in words is "twenty trillion, one hundred twelve billion, one hundred two million, twenty-one thousand, one hundred one".