2020121122121 has 8 divisors (see below), whose sum is σ = 2069483810688. Its totient is φ = 1970762788000.

The previous prime is 2020121122111. The next prime is 2020121122133. The reversal of 2020121122121 is 1212211210202.

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 2020121122121 - 2¹⁰ = 2020121121097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020121122121.

It is not an unprimeable number, because it can be changed into a prime (2020121122111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139445 + ... + 2014866.

It is an arithmetic number, because the mean of its divisors is an integer number (258685476336).

Almost surely, 2^{2020121122121} is an apocalyptic number.

It is an amenable number.

2020121122121 is a deficient number, since it is larger than the sum of its proper divisors (49362688567).

2020121122121 is a wasteful number, since it uses less digits than its factorization.

2020121122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177223.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2020121122121 its reverse (1212211210202), we get a palindrome (3232332332323).

The spelling of 2020121122121 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-one".