2022281221 has 2 divisors, whose sum is σ = 2022281222. Its totient is φ = 2022281220.

The previous prime is 2022281203. The next prime is 2022281231. The reversal of 2022281221 is 1221822202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1958505025 + 63776196 = 44255^2 + 7986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022281221 - 2¹¹ = 2022279173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022281192 and 2022281201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2022281231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011140610 + 1011140611.

It is an arithmetic number, because the mean of its divisors is an integer number (1011140611).

Almost surely, 2^2022281221 is an apocalyptic number.

It is an amenable number.

2022281221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022281221 is an equidigital number, since it uses as much as digits as its factorization.

2022281221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 2022281221 is about 44969.7811980445. The cubic root of 2022281221 is about 1264.5825451053.

The spelling of 2022281221 in words is "two billion, twenty-two million, two hundred eighty-one thousand, two hundred twenty-one".