2020121121 has 8 divisors (see below), whose sum is σ = 2786374080. Its totient is φ = 1300307792.

The previous prime is 2020121113. The next prime is 2020121137. The reversal of 2020121121 is 1211210202.

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 2020121121 - 2³ = 2020121113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020121097 and 2020121106.

It is not an unprimeable number, because it can be changed into a prime (2020121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11609805 + ... + 11609978.

It is an arithmetic number, because the mean of its divisors is an integer number (348296760).

Almost surely, 2^2020121121 is an apocalyptic number.

It is an amenable number.

2020121121 is a deficient number, since it is larger than the sum of its proper divisors (766252959).

2020121121 is a wasteful number, since it uses less digits than its factorization.

2020121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23219815.

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

The square root of 2020121121 is about 44945.7575417302. The cubic root of 2020121121 is about 1264.1321300163.

Adding to 2020121121 its reverse (1211210202), we get a palindrome (3231331323).

The spelling of 2020121121 in words is "two billion, twenty million, one hundred twenty-one thousand, one hundred twenty-one".