2021323322121 has 16 divisors (see below), whose sum is σ = 2751958680384. Its totient is φ = 1319387906304.

The previous prime is 2021323322093. The next prime is 2021323322167. The reversal of 2021323322121 is 1212233231202.

It is not a de Polignac number, because 2021323322121 - 2¹⁰ = 2021323321097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021323322091 and 2021323322100.

It is not an unprimeable number, because it can be changed into a prime (2021321322121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33655351 + ... + 33715356.

It is an arithmetic number, because the mean of its divisors is an integer number (171997417524).

Almost surely, 2^{2021323322121} is an apocalyptic number.

It is an amenable number.

2021323322121 is a deficient number, since it is larger than the sum of its proper divisors (730635358263).

2021323322121 is a wasteful number, since it uses less digits than its factorization.

2021323322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67370920.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2021323322121 its reverse (1212233231202), we get a palindrome (3233556553323).

It can be divided in two parts, 202132 and 3322121, that added together give a palindrome (3524253).

The spelling of 2021323322121 in words is "two trillion, twenty-one billion, three hundred twenty-three million, three hundred twenty-two thousand, one hundred twenty-one".