20101200110121 has 8 divisors (see below), whose sum is σ = 28863261696640. Its totient is φ = 12369969298512.

The previous prime is 20101200110059. The next prime is 20101200110143. The reversal of 20101200110121 is 12101100210102.

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

It is not a de Polignac number, because 20101200110121 - 2⁹ = 20101200109609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101200110097 and 20101200110106.

It is not an unprimeable number, because it can be changed into a prime (20101200110221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257707693681 + ... + 257707693758.

It is an arithmetic number, because the mean of its divisors is an integer number (3607907712080).

Almost surely, 2^{20101200110121} is an apocalyptic number.

It is an amenable number.

20101200110121 is a deficient number, since it is larger than the sum of its proper divisors (8762061586519).

20101200110121 is a wasteful number, since it uses less digits than its factorization.

20101200110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515415387455.

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

Adding to 20101200110121 its reverse (12101100210102), we get a palindrome (32202300320223).

The spelling of 20101200110121 in words is "twenty trillion, one hundred one billion, two hundred million, one hundred ten thousand, one hundred twenty-one".