22357230905 has 4 divisors (see below), whose sum is σ = 26828677092. Its totient is φ = 17885784720.

The previous prime is 22357230899. The next prime is 22357230941. The reversal of 22357230905 is 50903275322.

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 10738762384 + 11618468521 = 103628^2 + 107789^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22357230905 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235723086 + ... + 2235723095.

It is an arithmetic number, because the mean of its divisors is an integer number (6707169273).

Almost surely, 2^22357230905 is an apocalyptic number.

It is an amenable number.

22357230905 is a deficient number, since it is larger than the sum of its proper divisors (4471446187).

22357230905 is an equidigital number, since it uses as much as digits as its factorization.

22357230905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471446186.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 22357230905 in words is "twenty-two billion, three hundred fifty-seven million, two hundred thirty thousand, nine hundred five".