12100440005 has 8 divisors (see below), whose sum is σ = 14521329432. Its totient is φ = 9679817728.

The previous prime is 12100439993. The next prime is 12100440007. The reversal of 12100440005 is 50004400121.

It is a Cunningham number, because it is equal to 110002²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 12100440004 = 1^2 + 110002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12100440005 - 2⁸ = 12100439749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100440007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52109 + ... + 164061.

It is an arithmetic number, because the mean of its divisors is an integer number (1815166179).

Almost surely, 2^12100440005 is an apocalyptic number.

It is an amenable number.

12100440005 is a deficient number, since it is larger than the sum of its proper divisors (2420889427).

12100440005 is a wasteful number, since it uses less digits than its factorization.

12100440005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133575.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 12100440005 its reverse (50004400121), we get a palindrome (62104840126).

The spelling of 12100440005 in words is "twelve billion, one hundred million, four hundred forty thousand, five".