2221251343 has 2 divisors, whose sum is σ = 2221251344. Its totient is φ = 2221251342.

The previous prime is 2221251337. The next prime is 2221251371. The reversal of 2221251343 is 3431521222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221251343 - 2²⁹ = 1684380431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221257343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110625671 + 1110625672.

It is an arithmetic number, because the mean of its divisors is an integer number (1110625672).

Almost surely, 2^2221251343 is an apocalyptic number.

2221251343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221251343 is an equidigital number, since it uses as much as digits as its factorization.

2221251343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 2221251343 is about 47130.1532248729. The cubic root of 2221251343 is about 1304.7658095240.

Adding to 2221251343 its reverse (3431521222), we get a palindrome (5652772565).

The spelling of 2221251343 in words is "two billion, two hundred twenty-one million, two hundred fifty-one thousand, three hundred forty-three".