22236601 has 4 divisors (see below), whose sum is σ = 22246272. Its totient is φ = 22226932.

The previous prime is 22236581. The next prime is 22236647. The reversal of 22236601 is 10663222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22236601 - 2⁹ = 22236089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22236671) 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, 816 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (5561568).

Almost surely, 2^22236601 is an apocalyptic number.

It is an amenable number.

22236601 is a deficient number, since it is larger than the sum of its proper divisors (9671).

22236601 is an equidigital number, since it uses as much as digits as its factorization.

22236601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9670.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22236601 is about 4715.5700609788. The cubic root of 22236601 is about 281.2048463478.

Adding to 22236601 its reverse (10663222), we get a palindrome (32899823).

The spelling of 22236601 in words is "twenty-two million, two hundred thirty-six thousand, six hundred one".