2120201121 has 32 divisors (see below), whose sum is σ = 3091789440. Its totient is φ = 1286931456.

The previous prime is 2120201099. The next prime is 2120201141. The reversal of 2120201121 is 1211020212.

It is not a de Polignac number, because 2120201121 - 2²⁷ = 1985983393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120201097 and 2120201106.

It is not an unprimeable number, because it can be changed into a prime (2120201141) 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, 334635 + ... + 340911.

It is an arithmetic number, because the mean of its divisors is an integer number (96618420).

Almost surely, 2^2120201121 is an apocalyptic number.

It is an amenable number.

2120201121 is a deficient number, since it is larger than the sum of its proper divisors (971588319).

2120201121 is a wasteful number, since it uses less digits than its factorization.

2120201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2120201121 is about 46045.6417155848. The cubic root of 2120201121 is about 1284.6722800763.

Adding to 2120201121 its reverse (1211020212), we get a palindrome (3331221333).

The spelling of 2120201121 in words is "two billion, one hundred twenty million, two hundred one thousand, one hundred twenty-one".