2022220202221 has 4 divisors (see below), whose sum is σ = 2022226350844. Its totient is φ = 2022214053600.

The previous prime is 2022220202111. The next prime is 2022220202239. The reversal of 2022220202221 is 1222020222202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311196622500 + 1711023579721 = 557850^2 + 1308061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022220202221 - 2¹⁷ = 2022220071149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022220202251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551320 + ... + 3248641.

It is an arithmetic number, because the mean of its divisors is an integer number (505556587711).

Almost surely, 2^{2022220202221} is an apocalyptic number.

It is an amenable number.

2022220202221 is a deficient number, since it is larger than the sum of its proper divisors (6148623).

2022220202221 is an equidigital number, since it uses as much as digits as its factorization.

2022220202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148622.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2022220202221 its reverse (1222020222202), we get a palindrome (3244240424423).

The spelling of 2022220202221 in words is "two trillion, twenty-two billion, two hundred twenty million, two hundred two thousand, two hundred twenty-one".