2117221343 has 2 divisors, whose sum is σ = 2117221344. Its totient is φ = 2117221342.

The previous prime is 2117221333. The next prime is 2117221411. The reversal of 2117221343 is 3431227112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2117221343 - 2⁶ = 2117221279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117221333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058610671 + 1058610672.

It is an arithmetic number, because the mean of its divisors is an integer number (1058610672).

Almost surely, 2^2117221343 is an apocalyptic number.

2117221343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117221343 is an equidigital number, since it uses as much as digits as its factorization.

2117221343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 2117221343 is about 46013.2735523131. The cubic root of 2117221343 is about 1284.0701622083.

Adding to 2117221343 its reverse (3431227112), we get a palindrome (5548448455).

The spelling of 2117221343 in words is "two billion, one hundred seventeen million, two hundred twenty-one thousand, three hundred forty-three".