2111110121 has 8 divisors (see below), whose sum is σ = 2223244320. Its totient is φ = 1999078272.

The previous prime is 2111110109. The next prime is 2111110189. The reversal of 2111110121 is 1210111112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111110121 - 2¹⁴ = 2111093737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111110721) 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, 18746 + ... + 67628.

It is an arithmetic number, because the mean of its divisors is an integer number (277905540).

Almost surely, 2^2111110121 is an apocalyptic number.

It is an amenable number.

2111110121 is a deficient number, since it is larger than the sum of its proper divisors (112134199).

2111110121 is a wasteful number, since it uses less digits than its factorization.

2111110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51175.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 2111110121 is about 45946.8183991014. The cubic root of 2111110121 is about 1282.8335098759.

Adding to 2111110121 its reverse (1210111112), we get a palindrome (3321221233).

Subtracting from 2111110121 its reverse (1210111112), we obtain a palindrome (900999009).

The spelling of 2111110121 in words is "two billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-one".