22641442001 has 4 divisors (see below), whose sum is σ = 22651318452. Its totient is φ = 22631565552.

The previous prime is 22641441989. The next prime is 22641442039. The reversal of 22641442001 is 10024414622.

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 6272798401 + 16368643600 = 79201^2 + 127940^2 .

It is a cyclic number.

It is not a de Polignac number, because 22641442001 - 2²² = 22637247697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22641442081) 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, 4934786 + ... + 4939371.

It is an arithmetic number, because the mean of its divisors is an integer number (5662829613).

Almost surely, 2^22641442001 is an apocalyptic number.

It is an amenable number.

22641442001 is a deficient number, since it is larger than the sum of its proper divisors (9876451).

22641442001 is an equidigital number, since it uses as much as digits as its factorization.

22641442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876450.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 22641442001 its reverse (10024414622), we get a palindrome (32665856623).

The spelling of 22641442001 in words is "twenty-two billion, six hundred forty-one million, four hundred forty-two thousand, one".