2021223121033 has 8 divisors (see below), whose sum is σ = 2034806726720. Its totient is φ = 2007642121200.

The previous prime is 2021223120911. The next prime is 2021223121039. The reversal of 2021223121033 is 3301213221202.

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 2021223121033 - 2²⁵ = 2021189566601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021223120995 and 2021223121013.

It is not an unprimeable number, because it can be changed into a prime (2021223121039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917698 + ... + 2210116.

It is an arithmetic number, because the mean of its divisors is an integer number (254350840840).

Almost surely, 2^{2021223121033} is an apocalyptic number.

It is an amenable number.

2021223121033 is a deficient number, since it is larger than the sum of its proper divisors (13583605687).

2021223121033 is a wasteful number, since it uses less digits than its factorization.

2021223121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302927.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2021223121033 its reverse (3301213221202), we get a palindrome (5322436342235).

The spelling of 2021223121033 in words is "two trillion, twenty-one billion, two hundred twenty-three million, one hundred twenty-one thousand, thirty-three".