2022221231221 has 8 divisors (see below), whose sum is σ = 2155040573184. Its totient is φ = 1893143279280.

The previous prime is 2022221231213. The next prime is 2022221231237. The reversal of 2022221231221 is 1221321222202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2022221231221 - 2³ = 2022221231213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022221231192 and 2022221231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022221231281) 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, 935346390 + ... + 935348551.

It is an arithmetic number, because the mean of its divisors is an integer number (269380071648).

Almost surely, 2^{2022221231221} is an apocalyptic number.

It is an amenable number.

2022221231221 is a deficient number, since it is larger than the sum of its proper divisors (132819341963).

2022221231221 is a wasteful number, since it uses less digits than its factorization.

2022221231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870695011.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2022221231221 its reverse (1221321222202), we get a palindrome (3243542453423).

The spelling of 2022221231221 in words is "two trillion, twenty-two billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred twenty-one".