201110120112121 has 32 divisors (see below), whose sum is σ = 222786307906560. Its totient is φ = 180002451921600.

The previous prime is 201110120112119. The next prime is 201110120112229. The reversal of 201110120112121 is 121211021011102.

It is not a de Polignac number, because 201110120112121 - 2¹ = 201110120112119 is a prime.

It is a super-2 number, since 2×201110120112121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201110120112095 and 201110120112104.

It is not an unprimeable number, because it can be changed into a prime (201110120112721) 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, 15685986891 + ... + 15685999711.

It is an arithmetic number, because the mean of its divisors is an integer number (6962072122080).

Almost surely, 2^{201110120112121} is an apocalyptic number.

It is an amenable number.

201110120112121 is a deficient number, since it is larger than the sum of its proper divisors (21676187794439).

201110120112121 is a wasteful number, since it uses less digits than its factorization.

201110120112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22605.

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

Adding to 201110120112121 its reverse (121211021011102), we get a palindrome (322321141123223).

The spelling of 201110120112121 in words is "two hundred one trillion, one hundred ten billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty-one".