22122609 has 8 divisors (see below), whose sum is σ = 29576160. Its totient is φ = 14708736.

The previous prime is 22122601. The next prime is 22122613. The reversal of 22122609 is 90622122.

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

It is not a de Polignac number, because 22122609 - 2³ = 22122601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22122601) 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, 8592 + ... + 10865.

It is an arithmetic number, because the mean of its divisors is an integer number (3697020).

Almost surely, 2^22122609 is an apocalyptic number.

It is an amenable number.

22122609 is a deficient number, since it is larger than the sum of its proper divisors (7453551).

22122609 is a wasteful number, since it uses less digits than its factorization.

22122609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19839.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22122609 is about 4703.4677632572. The cubic root of 22122609 is about 280.7235072812.

The spelling of 22122609 in words is "twenty-two million, one hundred twenty-two thousand, six hundred nine".