20222221022021 has 8 divisors (see below), whose sum is σ = 20335315809600. Its totient is φ = 20109127584640.

The previous prime is 20222221021963. The next prime is 20222221022023. The reversal of 20222221022021 is 12022012222202.

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 20222221022021 - 2³⁰ = 20221147280197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222221021984 and 20222221022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222221022023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54833840 + ... + 55201398.

It is an arithmetic number, because the mean of its divisors is an integer number (2541914476200).

Almost surely, 2^{20222221022021} is an apocalyptic number.

It is an amenable number.

20222221022021 is a deficient number, since it is larger than the sum of its proper divisors (113094787579).

20222221022021 is a wasteful number, since it uses less digits than its factorization.

20222221022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675099.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20222221022021 its reverse (12022012222202), we get a palindrome (32244233244223).

The spelling of 20222221022021 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, twenty-one".