20012111101101 has 8 divisors (see below), whose sum is σ = 30494645487424. Its totient is φ = 11435492057760.

The previous prime is 20012111101091. The next prime is 20012111101111. The reversal of 20012111101101 is 10110111121002.

It is an interprime number because it is at equal distance from previous prime (20012111101091) and next prime (20012111101111).

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

It is not a de Polignac number, because 20012111101101 - 2¹⁰ = 20012111100077 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 (20012111101111) 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, 476478835720 + ... + 476478835761.

It is an arithmetic number, because the mean of its divisors is an integer number (3811830685928).

Almost surely, 2^{20012111101101} is an apocalyptic number.

20012111101101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20012111101101 is a deficient number, since it is larger than the sum of its proper divisors (10482534386323).

20012111101101 is an equidigital number, since it uses as much as digits as its factorization.

20012111101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952957671491.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 20012111101101 its reverse (10110111121002), we get a palindrome (30122222222103).

The spelling of 20012111101101 in words is "twenty trillion, twelve billion, one hundred eleven million, one hundred one thousand, one hundred one".