22120585 has 4 divisors (see below), whose sum is σ = 26544708. Its totient is φ = 17696464.

The previous prime is 22120583. The next prime is 22120633. The reversal of 22120585 is 58502122.

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 6056521 + 16064064 = 2461^2 + 4008^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120585 - 2¹ = 22120583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212054 + ... + 2212063.

It is an arithmetic number, because the mean of its divisors is an integer number (6636177).

Almost surely, 2^22120585 is an apocalyptic number.

It is an amenable number.

22120585 is a deficient number, since it is larger than the sum of its proper divisors (4424123).

22120585 is an equidigital number, since it uses as much as digits as its factorization.

22120585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424122.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 22120585 is about 4703.2525979369. The cubic root of 22120585 is about 280.7149458783.

The spelling of 22120585 in words is "twenty-two million, one hundred twenty thousand, five hundred eighty-five".