44140221501209 has 2 divisors, whose sum is σ = 44140221501210. Its totient is φ = 44140221501208.

The previous prime is 44140221501199. The next prime is 44140221501253. The reversal of 44140221501209 is 90210512204144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23036736115600 + 21103485385609 = 4799660^2 + 4593853^2 .

It is a cyclic number.

It is not a de Polignac number, because 44140221501209 - 2⁴ = 44140221501193 is a prime.

It is not a weakly prime, because it can be changed into another prime (44140221501289) 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 as a sum of consecutive naturals, namely, 22070110750604 + 22070110750605.

It is an arithmetic number, because the mean of its divisors is an integer number (22070110750605).

Almost surely, 2^{44140221501209} is an apocalyptic number.

It is an amenable number.

44140221501209 is a deficient number, since it is larger than the sum of its proper divisors (1).

44140221501209 is an equidigital number, since it uses as much as digits as its factorization.

44140221501209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 44140221501209 in words is "forty-four trillion, one hundred forty billion, two hundred twenty-one million, five hundred one thousand, two hundred nine".