20221222020021 has 24 divisors (see below), whose sum is σ = 33540782939040. Its totient is φ = 11610271015200.

The previous prime is 20221222020019. The next prime is 20221222020023. The reversal of 20221222020021 is 12002022212202.

20221222020021 is a `hidden beast` number, since 2 + 0 + 221 + 2 + 220 + 200 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (20221222020019) and next prime (20221222020023).

It is not a de Polignac number, because 20221222020021 - 2¹ = 20221222020019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221222019976 and 20221222020003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221222020023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5375123590 + ... + 5375127351.

It is an arithmetic number, because the mean of its divisors is an integer number (1397532622460).

Almost surely, 2^{20221222020021} is an apocalyptic number.

It is an amenable number.

20221222020021 is a deficient number, since it is larger than the sum of its proper divisors (13319560919019).

20221222020021 is a wasteful number, since it uses less digits than its factorization.

20221222020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750250977 (or 10750250974 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20221222020021 its reverse (12002022212202), we get a palindrome (32223244232223).

The spelling of 20221222020021 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, twenty-one".