22130805 has 8 divisors (see below), whose sum is σ = 35409312. Its totient is φ = 11803088.

The previous prime is 22130803. The next prime is 22130813. The reversal of 22130805 is 50803122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22130805 - 2¹ = 22130803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737679 + ... + 737708.

It is an arithmetic number, because the mean of its divisors is an integer number (4426164).

Almost surely, 2^22130805 is an apocalyptic number.

It is an amenable number.

22130805 is a deficient number, since it is larger than the sum of its proper divisors (13278507).

22130805 is a wasteful number, since it uses less digits than its factorization.

22130805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475395.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 22130805 is about 4704.3389546248. The cubic root of 22130805 is about 280.7581705494.

Adding to 22130805 its reverse (50803122), we get a palindrome (72933927).

The spelling of 22130805 in words is "twenty-two million, one hundred thirty thousand, eight hundred five".