2221343 has 2 divisors, whose sum is σ = 2221344. Its totient is φ = 2221342.

The previous prime is 2221333. The next prime is 2221379. The reversal of 2221343 is 3431222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221343 - 2¹² = 2217247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110671 + 1110672.

It is an arithmetic number, because the mean of its divisors is an integer number (1110672).

2^2221343 is an apocalyptic number.

2221343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221343 is an equidigital number, since it uses as much as digits as its factorization.

2221343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 17.

The square root of 2221343 is about 1490.4170557263. The cubic root of 2221343 is about 130.4783755756.

Adding to 2221343 its reverse (3431222), we get a palindrome (5652565).

The spelling of 2221343 in words is "two million, two hundred twenty-one thousand, three hundred forty-three".