2132110121 has 4 divisors (see below), whose sum is σ = 2132247492. Its totient is φ = 2131972752.

The previous prime is 2132110111. The next prime is 2132110171. The reversal of 2132110121 is 1210112312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1439367721 + 692742400 = 37939^2 + 26320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132110121 - 2¹⁰ = 2132109097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132110096 and 2132110105.

It is not an unprimeable number, because it can be changed into a prime (2132110111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41930 + ... + 77603.

It is an arithmetic number, because the mean of its divisors is an integer number (533061873).

Almost surely, 2^2132110121 is an apocalyptic number.

It is an amenable number.

2132110121 is a deficient number, since it is larger than the sum of its proper divisors (137371).

2132110121 is a wasteful number, since it uses less digits than its factorization.

2132110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137370.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2132110121 is about 46174.7779745610. Note that the first 3 decimals coincide. The cubic root of 2132110121 is about 1287.0730910751.

Adding to 2132110121 its reverse (1210112312), we get a palindrome (3342222433).

The spelling of 2132110121 in words is "two billion, one hundred thirty-two million, one hundred ten thousand, one hundred twenty-one".