2221733 has 2 divisors, whose sum is σ = 2221734. Its totient is φ = 2221732.

The previous prime is 2221721. The next prime is 2221741. The reversal of 2221733 is 3371222.

2221733 is digitally balanced in base 2, 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., 2184484 + 37249 = 1478^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221733 - 2⁶ = 2221669 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221753) 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, 1110866 + 1110867.

It is an arithmetic number, because the mean of its divisors is an integer number (1110867).

2^2221733 is an apocalyptic number.

It is an amenable number.

2221733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221733 is an equidigital number, since it uses as much as digits as its factorization.

2221733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 20.

The square root of 2221733 is about 1490.5478858460. The cubic root of 2221733 is about 130.4860111349.

Adding to 2221733 its reverse (3371222), we get a palindrome (5592955).

The spelling of 2221733 in words is "two million, two hundred twenty-one thousand, seven hundred thirty-three".