2020121222121 has 32 divisors (see below), whose sum is σ = 3056483341440. Its totient is φ = 1318198190400.

The previous prime is 2020121222117. The next prime is 2020121222143. The reversal of 2020121222121 is 1212221210202.

It is a happy number.

2020121222121 is a `hidden beast` number, since 202 + 0 + 121 + 222 + 121 = 666.

It is not a de Polignac number, because 2020121222121 - 2² = 2020121222117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020121222094 and 2020121222103.

It is not an unprimeable number, because it can be changed into a prime (2020121222111) 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, 1074135 + ... + 2279036.

It is an arithmetic number, because the mean of its divisors is an integer number (95515104420).

Almost surely, 2^{2020121222121} is an apocalyptic number.

It is an amenable number.

2020121222121 is a deficient number, since it is larger than the sum of its proper divisors (1036362119319).

2020121222121 is a wasteful number, since it uses less digits than its factorization.

2020121222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353654 (or 3353648 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2020121222121 its reverse (1212221210202), we get a palindrome (3232342432323).

The spelling of 2020121222121 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".