22266641 has 4 divisors (see below), whose sum is σ = 22496292. Its totient is φ = 22036992.

The previous prime is 22266631. The next prime is 22266653. The reversal of 22266641 is 14666222.

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 4289041 + 17977600 = 2071^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 22266641 - 2¹⁸ = 22004497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22266631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114680 + ... + 114873.

It is an arithmetic number, because the mean of its divisors is an integer number (5624073).

Almost surely, 2^22266641 is an apocalyptic number.

It is an amenable number.

22266641 is a deficient number, since it is larger than the sum of its proper divisors (229651).

22266641 is an equidigital number, since it uses as much as digits as its factorization.

22266641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229650.

The product of its digits is 6912, while the sum is 29.

The square root of 22266641 is about 4718.7541788061. The cubic root of 22266641 is about 281.3314183376.

The spelling of 22266641 in words is "twenty-two million, two hundred sixty-six thousand, six hundred forty-one".