2221402343 has 4 divisors (see below), whose sum is σ = 2249521440. Its totient is φ = 2193283248.

The previous prime is 2221402319. The next prime is 2221402361. The reversal of 2221402343 is 3432041222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221402343 - 2⁶ = 2221402279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221402643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14059430 + ... + 14059587.

It is an arithmetic number, because the mean of its divisors is an integer number (562380360).

Almost surely, 2^2221402343 is an apocalyptic number.

2221402343 is a deficient number, since it is larger than the sum of its proper divisors (28119097).

2221402343 is an equidigital number, since it uses as much as digits as its factorization.

2221402343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28119096.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2221402343 is about 47131.7551444883. The cubic root of 2221402343 is about 1304.7953747169.

Adding to 2221402343 its reverse (3432041222), we get a palindrome (5653443565).

The spelling of 2221402343 in words is "two billion, two hundred twenty-one million, four hundred two thousand, three hundred forty-three".