2105222443 has 2 divisors, whose sum is σ = 2105222444. Its totient is φ = 2105222442.

The previous prime is 2105222389. The next prime is 2105222447. The reversal of 2105222443 is 3442225012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105222443 - 2²¹ = 2103125291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105222447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052611221 + 1052611222.

It is an arithmetic number, because the mean of its divisors is an integer number (1052611222).

Almost surely, 2^2105222443 is an apocalyptic number.

2105222443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105222443 is an equidigital number, since it uses as much as digits as its factorization.

2105222443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2105222443 is about 45882.7030916880. The cubic root of 2105222443 is about 1281.6398341096.

Adding to 2105222443 its reverse (3442225012), we get a palindrome (5547447455).

The spelling of 2105222443 in words is "two billion, one hundred five million, two hundred twenty-two thousand, four hundred forty-three".