21112110110201 has 32 divisors (see below), whose sum is σ = 23543336880000. Its totient is φ = 18769852224000.

The previous prime is 21112110110177. The next prime is 21112110110219. The reversal of 21112110110201 is 10201101121112.

It is a cyclic number.

It is not a de Polignac number, because 21112110110201 - 2⁶ = 21112110110137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112110110291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1340528675 + ... + 1340544423.

It is an arithmetic number, because the mean of its divisors is an integer number (735729277500).

Almost surely, 2^{21112110110201} is an apocalyptic number.

It is an amenable number.

21112110110201 is a deficient number, since it is larger than the sum of its proper divisors (2431226769799).

21112110110201 is a wasteful number, since it uses less digits than its factorization.

21112110110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27161.

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

Adding to 21112110110201 its reverse (10201101121112), we get a palindrome (31313211231313).

The spelling of 21112110110201 in words is "twenty-one trillion, one hundred twelve billion, one hundred ten million, one hundred ten thousand, two hundred one".