2221273 has 2 divisors, whose sum is σ = 2221274. Its totient is φ = 2221272.

The previous prime is 2221259. The next prime is 2221301. The reversal of 2221273 is 3721222.

2221273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1993744 + 227529 = 1412^2 + 477^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221273 - 2²¹ = 124121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221273.

It is not a weakly prime, because it can be changed into another prime (2221253) 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, 1110636 + 1110637.

It is an arithmetic number, because the mean of its divisors is an integer number (1110637).

2^2221273 is an apocalyptic number.

It is an amenable number.

2221273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221273 is an equidigital number, since it uses as much as digits as its factorization.

2221273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 19.

The square root of 2221273 is about 1490.3935721815. The cubic root of 2221273 is about 130.4770049960.

Adding to 2221273 its reverse (3721222), we get a palindrome (5942495).

The spelling of 2221273 in words is "two million, two hundred twenty-one thousand, two hundred seventy-three".