2444444122213 has 2 divisors, whose sum is σ = 2444444122214. Its totient is φ = 2444444122212.

The previous prime is 2444444122201. The next prime is 2444444122327. The reversal of 2444444122213 is 3122214444442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2415963509569 + 28480612644 = 1554337^2 + 168762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2444444122213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2444444122613) 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, 1222222061106 + 1222222061107.

It is an arithmetic number, because the mean of its divisors is an integer number (1222222061107).

Almost surely, 2^{2444444122213} is an apocalyptic number.

It is an amenable number.

2444444122213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2444444122213 is an equidigital number, since it uses as much as digits as its factorization.

2444444122213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196608, while the sum is 37.

Adding to 2444444122213 its reverse (3122214444442), we get a palindrome (5566658566655).

The spelling of 2444444122213 in words is "two trillion, four hundred forty-four billion, four hundred forty-four million, one hundred twenty-two thousand, two hundred thirteen".