2022221222221 has 8 divisors (see below), whose sum is σ = 2034664038560. Its totient is φ = 2009778851952.

The previous prime is 2022221222183. The next prime is 2022221222237. The reversal of 2022221222221 is 1222221222202.

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 2022221222221 - 2²⁵ = 2022187667789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022221222192 and 2022221222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022221022221) 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, 17548690 + ... + 17663548.

It is an arithmetic number, because the mean of its divisors is an integer number (254333004820).

Almost surely, 2^{2022221222221} is an apocalyptic number.

It is an amenable number.

2022221222221 is a deficient number, since it is larger than the sum of its proper divisors (12442816339).

2022221222221 is a wasteful number, since it uses less digits than its factorization.

2022221222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223035.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2022221222221 its reverse (1222221222202), we get a palindrome (3244442444423).

The spelling of 2022221222221 in words is "two trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-one".