2021043035121 has 144 divisors (see below), whose sum is σ = 3220730476992. Its totient is φ = 1125472423680.

The previous prime is 2021043035071. The next prime is 2021043035161. The reversal of 2021043035121 is 1215303401202.

It is not a de Polignac number, because 2021043035121 - 2⁹ = 2021043034609 is a prime.

It is a super-2 number, since 2×2021043035121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021043035091 and 2021043035100.

It is not an unprimeable number, because it can be changed into a prime (2021043035161) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2535812695 + ... + 2535813491.

It is an arithmetic number, because the mean of its divisors is an integer number (22366183868).

Almost surely, 2^{2021043035121} is an apocalyptic number.

It is an amenable number.

2021043035121 is a deficient number, since it is larger than the sum of its proper divisors (1199687441871).

2021043035121 is a wasteful number, since it uses less digits than its factorization.

2021043035121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 2021043035121 its reverse (1215303401202), we get a palindrome (3236346436323).

The spelling of 2021043035121 in words is "two trillion, twenty-one billion, forty-three million, thirty-five thousand, one hundred twenty-one".