22100513405 has 4 divisors (see below), whose sum is σ = 26520616092. Its totient is φ = 17680410720.

The previous prime is 22100513389. The next prime is 22100513441. The reversal of 22100513405 is 50431500122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4180139716 + 17920373689 = 64654^2 + 133867^2 .

It is not a de Polignac number, because 22100513405 - 2⁴ = 22100513389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2210051336 + ... + 2210051345.

It is an arithmetic number, because the mean of its divisors is an integer number (6630154023).

Almost surely, 2^22100513405 is an apocalyptic number.

It is an amenable number.

22100513405 is a deficient number, since it is larger than the sum of its proper divisors (4420102687).

22100513405 is an equidigital number, since it uses as much as digits as its factorization.

22100513405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420102686.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 22100513405 in words is "twenty-two billion, one hundred million, five hundred thirteen thousand, four hundred five".