21112112110201 has 8 divisors (see below), whose sum is σ = 24960132544320. Its totient is φ = 17472092780688.

The previous prime is 21112112110181. The next prime is 21112112110217. The reversal of 21112112110201 is 10201121121112.

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

It is not a de Polignac number, because 21112112110201 - 2³⁵ = 21077752371833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112112110601) 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, 52000275931 + ... + 52000276336.

It is an arithmetic number, because the mean of its divisors is an integer number (3120016568040).

Almost surely, 2^{21112112110201} is an apocalyptic number.

It is an amenable number.

21112112110201 is a deficient number, since it is larger than the sum of its proper divisors (3848020434119).

21112112110201 is a wasteful number, since it uses less digits than its factorization.

21112112110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104000552303.

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

Adding to 21112112110201 its reverse (10201121121112), we get a palindrome (31313233231313).

The spelling of 21112112110201 in words is "twenty-one trillion, one hundred twelve billion, one hundred twelve million, one hundred ten thousand, two hundred one".