22041601 has 4 divisors (see below), whose sum is σ = 22268932. Its totient is φ = 21814272.

The previous prime is 22041583. The next prime is 22041623. The reversal of 22041601 is 10614022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10614022 = 2 ⋅5307011.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 17631601 = 2100^2 + 4199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22041601 - 2¹¹ = 22039553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22041631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113520 + ... + 113713.

It is an arithmetic number, because the mean of its divisors is an integer number (5567233).

Almost surely, 2^22041601 is an apocalyptic number.

It is an amenable number.

22041601 is a deficient number, since it is larger than the sum of its proper divisors (227331).

22041601 is an equidigital number, since it uses as much as digits as its factorization.

22041601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227330.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 22041601 is about 4694.8483468585. The cubic root of 22041601 is about 280.3804394907.

Adding to 22041601 its reverse (10614022), we get a palindrome (32655623).

The spelling of 22041601 in words is "twenty-two million, forty-one thousand, six hundred one".