440121227089 has 2 divisors, whose sum is σ = 440121227090. Its totient is φ = 440121227088.

The previous prime is 440121227087. The next prime is 440121227093. The reversal of 440121227089 is 980722121044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390635000064 + 49486227025 = 625008^2 + 222455^2 .

It is a cyclic number.

It is not a de Polignac number, because 440121227089 - 2¹ = 440121227087 is a prime.

Together with 440121227087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (440121227083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220060613544 + 220060613545.

It is an arithmetic number, because the mean of its divisors is an integer number (220060613545).

Almost surely, 2^440121227089 is an apocalyptic number.

It is an amenable number.

440121227089 is a deficient number, since it is larger than the sum of its proper divisors (1).

440121227089 is an equidigital number, since it uses as much as digits as its factorization.

440121227089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 440121227089 in words is "four hundred forty billion, one hundred twenty-one million, two hundred twenty-seven thousand, eighty-nine".