4022240202221 has 2 divisors, whose sum is σ = 4022240202222. Its totient is φ = 4022240202220.

The previous prime is 4022240202173. The next prime is 4022240202223. The reversal of 4022240202221 is 1222020422204.

4022240202221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4004057028196 + 18183174025 = 2001014^2 + 134845^2 .

It is a cyclic number.

It is not a de Polignac number, because 4022240202221 - 2³⁴ = 4005060333037 is a prime.

Together with 4022240202223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4022240202223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011120101110 + 2011120101111.

It is an arithmetic number, because the mean of its divisors is an integer number (2011120101111).

Almost surely, 2^{4022240202221} is an apocalyptic number.

It is an amenable number.

4022240202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4022240202221 is an equidigital number, since it uses as much as digits as its factorization.

4022240202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 4022240202221 its reverse (1222020422204), we get a palindrome (5244260624425).

The spelling of 4022240202221 in words is "four trillion, twenty-two billion, two hundred forty million, two hundred two thousand, two hundred twenty-one".