2120101121 has 8 divisors (see below), whose sum is σ = 2165338560. Its totient is φ = 2075332752.

The previous prime is 2120101099. The next prime is 2120101133. The reversal of 2120101121 is 1211010212.

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 2120101121 - 2¹⁴ = 2120084737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120101721) 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, 108125 + ... + 126218.

It is an arithmetic number, because the mean of its divisors is an integer number (270667320).

Almost surely, 2^2120101121 is an apocalyptic number.

It is an amenable number.

2120101121 is a deficient number, since it is larger than the sum of its proper divisors (45237439).

2120101121 is a wasteful number, since it uses less digits than its factorization.

2120101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234535.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2120101121 is about 46044.5558236802. Note that the first 3 decimals coincide. The cubic root of 2120101121 is about 1284.6520824251.

Adding to 2120101121 its reverse (1211010212), we get a palindrome (3331111333).

Subtracting from 2120101121 its reverse (1211010212), we obtain a palindrome (909090909).

The spelling of 2120101121 in words is "two billion, one hundred twenty million, one hundred one thousand, one hundred twenty-one".