2022281 has 2 divisors, whose sum is σ = 2022282. Its totient is φ = 2022280.

The previous prime is 2022271. The next prime is 2022283. The reversal of 2022281 is 1822202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032256 + 990025 = 1016^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022281 - 2⁶ = 2022217 is a prime.

It is a super-2 number, since 2×2022281² = 8179240885922, which contains 22 as substring.

Together with 2022283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2022283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011140 + 1011141.

It is an arithmetic number, because the mean of its divisors is an integer number (1011141).

2^2022281 is an apocalyptic number.

It is an amenable number.

2022281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022281 is an equidigital number, since it uses as much as digits as its factorization.

2022281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2022281 is about 1422.0692669487. The cubic root of 2022281 is about 126.4582499040.

Adding to 2022281 its reverse (1822202), we get a palindrome (3844483).

The spelling of 2022281 in words is "two million, twenty-two thousand, two hundred eighty-one".