12244412105 has 4 divisors (see below), whose sum is σ = 14693294532. Its totient is φ = 9795529680.

The previous prime is 12244412101. The next prime is 12244412107. The reversal of 12244412105 is 50121444221.

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 9768752569 + 2475659536 = 98837^2 + 49756^2 .

It is not a de Polignac number, because 12244412105 - 2² = 12244412101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12244412101) 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, 1224441206 + ... + 1224441215.

It is an arithmetic number, because the mean of its divisors is an integer number (3673323633).

Almost surely, 2^12244412105 is an apocalyptic number.

It is an amenable number.

12244412105 is a deficient number, since it is larger than the sum of its proper divisors (2448882427).

12244412105 is an equidigital number, since it uses as much as digits as its factorization.

12244412105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448882426.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 12244412105 its reverse (50121444221), we get a palindrome (62365856326).

The spelling of 12244412105 in words is "twelve billion, two hundred forty-four million, four hundred twelve thousand, one hundred five".