440221002101 has 2 divisors, whose sum is σ = 440221002102. Its totient is φ = 440221002100.

The previous prime is 440221002031. The next prime is 440221002107. The reversal of 440221002101 is 101200122044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237900062500 + 202320939601 = 487750^2 + 449801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440221002101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440221002101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440221002107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220110501050 + 220110501051.

It is an arithmetic number, because the mean of its divisors is an integer number (220110501051).

Almost surely, 2^440221002101 is an apocalyptic number.

It is an amenable number.

440221002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

440221002101 is an equidigital number, since it uses as much as digits as its factorization.

440221002101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 440221002101 its reverse (101200122044), we get a palindrome (541421124145).

The spelling of 440221002101 in words is "four hundred forty billion, two hundred twenty-one million, two thousand, one hundred one".