20220021222221 has 8 divisors (see below), whose sum is σ = 20229279071040. Its totient is φ = 20210763902112.

The previous prime is 20220021222211. The next prime is 20220021222239. The reversal of 20220021222221 is 12222212002202.

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 20220021222221 - 2¹⁸ = 20220020960077 is a prime.

It is a super-3 number, since 3×20220021222221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220021222193 and 20220021222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220021222211) 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, 90438056 + ... + 90661358.

It is an arithmetic number, because the mean of its divisors is an integer number (2528659883880).

Almost surely, 2^{20220021222221} is an apocalyptic number.

It is an amenable number.

20220021222221 is a deficient number, since it is larger than the sum of its proper divisors (9257848819).

20220021222221 is a wasteful number, since it uses less digits than its factorization.

20220021222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264355.

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

Adding to 20220021222221 its reverse (12222212002202), we get a palindrome (32442233224423).

The spelling of 20220021222221 in words is "twenty trillion, two hundred twenty billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty-one".