2121141121 has 16 divisors (see below), whose sum is σ = 2430004608. Its totient is φ = 1832688000.

The previous prime is 2121141107. The next prime is 2121141131. The reversal of 2121141121 is 1211411212.

It is not a de Polignac number, because 2121141121 - 2¹⁹ = 2120616833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121141095 and 2121141104.

It is not an unprimeable number, because it can be changed into a prime (2121141101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13021 + ... + 66421.

It is an arithmetic number, because the mean of its divisors is an integer number (151875288).

Almost surely, 2^2121141121 is an apocalyptic number.

It is an amenable number.

2121141121 is a deficient number, since it is larger than the sum of its proper divisors (308863487).

2121141121 is a wasteful number, since it uses less digits than its factorization.

2121141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53592.

The product of its digits is 32, while the sum is 16.

The square root of 2121141121 is about 46055.8478480203. The cubic root of 2121141121 is about 1284.8621069613.

Adding to 2121141121 its reverse (1211411212), we get a palindrome (3332552333).

It can be divided in two parts, 2 and 121141121, that multiplied together give a palindrome (242282242).

The spelling of 2121141121 in words is "two billion, one hundred twenty-one million, one hundred forty-one thousand, one hundred twenty-one".