282214021 has 2 divisors, whose sum is σ = 282214022. Its totient is φ = 282214020.

The previous prime is 282214019. The next prime is 282214033. The reversal of 282214021 is 120412282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257602500 + 24611521 = 16050^2 + 4961^2 .

It is a cyclic number.

It is not a de Polignac number, because 282214021 - 2¹ = 282214019 is a prime.

Together with 282214019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 282213983 and 282214001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282214001) 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, 141107010 + 141107011.

It is an arithmetic number, because the mean of its divisors is an integer number (141107011).

Almost surely, 2^282214021 is an apocalyptic number.

It is an amenable number.

282214021 is a deficient number, since it is larger than the sum of its proper divisors (1).

282214021 is an equidigital number, since it uses as much as digits as its factorization.

282214021 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 282214021 is about 16799.2267976833. The cubic root of 282214021 is about 655.9330725953.

The spelling of 282214021 in words is "two hundred eighty-two million, two hundred fourteen thousand, twenty-one".