1244440200097 has 2 divisors, whose sum is σ = 1244440200098. Its totient is φ = 1244440200096.

The previous prime is 1244440200071. The next prime is 1244440200169. The reversal of 1244440200097 is 7900020444421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855913624336 + 388526575761 = 925156^2 + 623319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244440200097 - 2¹⁵ = 1244440167329 is a prime.

It is a super-2 number, since 2×1244440200097² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1244440200797) 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, 622220100048 + 622220100049.

It is an arithmetic number, because the mean of its divisors is an integer number (622220100049).

Almost surely, 2^{1244440200097} is an apocalyptic number.

It is an amenable number.

1244440200097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244440200097 is an equidigital number, since it uses as much as digits as its factorization.

1244440200097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 1244440200097 in words is "one trillion, two hundred forty-four billion, four hundred forty million, two hundred thousand, ninety-seven".