22144307441 has 4 divisors (see below), whose sum is σ = 22144744932. Its totient is φ = 22143869952.

The previous prime is 22144307401. The next prime is 22144307443. The reversal of 22144307441 is 14470344122.

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 20112912400 + 2031395041 = 141820^2 + 45071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22144307441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22144307398 and 22144307407.

It is not an unprimeable number, because it can be changed into a prime (22144307443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131120 + ... + 247953.

It is an arithmetic number, because the mean of its divisors is an integer number (5536186233).

Almost surely, 2^22144307441 is an apocalyptic number.

It is an amenable number.

22144307441 is a deficient number, since it is larger than the sum of its proper divisors (437491).

22144307441 is an equidigital number, since it uses as much as digits as its factorization.

22144307441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437490.

The product of its (nonzero) digits is 21504, while the sum is 32.

The spelling of 22144307441 in words is "twenty-two billion, one hundred forty-four million, three hundred seven thousand, four hundred forty-one".