22644201 has 4 divisors (see below), whose sum is σ = 30192272. Its totient is φ = 15096132.

The previous prime is 22644173. The next prime is 22644203. The reversal of 22644201 is 10244622.

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.

It is not a de Polignac number, because 22644201 - 2⁶ = 22644137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22644203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774031 + ... + 3774036.

It is an arithmetic number, because the mean of its divisors is an integer number (7548068).

Almost surely, 2^22644201 is an apocalyptic number.

It is an amenable number.

22644201 is a deficient number, since it is larger than the sum of its proper divisors (7548071).

22644201 is an equidigital number, since it uses as much as digits as its factorization.

22644201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548070.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22644201 is about 4758.5923338735. The cubic root of 22644201 is about 282.9126285324.

Adding to 22644201 its reverse (10244622), we get a palindrome (32888823).

The spelling of 22644201 in words is "twenty-two million, six hundred forty-four thousand, two hundred one".