22235440001 has 4 divisors (see below), whose sum is σ = 22235952900. Its totient is φ = 22234927104.

The previous prime is 22235439979. The next prime is 22235440027. The reversal of 22235440001 is 10004453222.

It is a happy number.

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 673454401 + 21561985600 = 25951^2 + 146840^2 .

It is a cyclic number.

It is not a de Polignac number, because 22235440001 - 2¹⁸ = 22235177857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22235440501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184736 + ... + 280353.

It is an arithmetic number, because the mean of its divisors is an integer number (5558988225).

Almost surely, 2^22235440001 is an apocalyptic number.

It is an amenable number.

22235440001 is a deficient number, since it is larger than the sum of its proper divisors (512899).

22235440001 is an equidigital number, since it uses as much as digits as its factorization.

22235440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512898.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 22235440001 its reverse (10004453222), we get a palindrome (32239893223).

The spelling of 22235440001 in words is "twenty-two billion, two hundred thirty-five million, four hundred forty thousand, one".