1244244510421 has 32 divisors (see below), whose sum is σ = 1435968737280. Its totient is φ = 1067515545600.

The previous prime is 1244244510419. The next prime is 1244244510437. The reversal of 1244244510421 is 1240154424421.

It is a cyclic number.

It is not a de Polignac number, because 1244244510421 - 2¹ = 1244244510419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244244510461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9362325 + ... + 9494293.

It is an arithmetic number, because the mean of its divisors is an integer number (44874023040).

Almost surely, 2^{1244244510421} is an apocalyptic number.

1244244510421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1244244510421 is a deficient number, since it is larger than the sum of its proper divisors (191724226859).

1244244510421 is a wasteful number, since it uses less digits than its factorization.

1244244510421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132697.

The product of its (nonzero) digits is 40960, while the sum is 34.

Adding to 1244244510421 its reverse (1240154424421), we get a palindrome (2484398934842).

The spelling of 1244244510421 in words is "one trillion, two hundred forty-four billion, two hundred forty-four million, five hundred ten thousand, four hundred twenty-one".