10405222109 has 2 divisors, whose sum is σ = 10405222110. Its totient is φ = 10405222108.

The previous prime is 10405222099. The next prime is 10405222133. The reversal of 10405222109 is 90122250401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10306716484 + 98505625 = 101522^2 + 9925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10405222109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10405222159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202611054 + 5202611055.

It is an arithmetic number, because the mean of its divisors is an integer number (5202611055).

Almost surely, 2^10405222109 is an apocalyptic number.

It is an amenable number.

10405222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10405222109 is an equidigital number, since it uses as much as digits as its factorization.

10405222109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 10405222109 in words is "ten billion, four hundred five million, two hundred twenty-two thousand, one hundred nine".