244001117021 has 8 divisors (see below), whose sum is σ = 247732732800. Its totient is φ = 240277695280.

The previous prime is 244001116981. The next prime is 244001117029. The reversal of 244001117021 is 120711100442.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244001117021 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 (244001117029) 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, 1988486 + ... + 2107623.

It is an arithmetic number, because the mean of its divisors is an integer number (30966591600).

Almost surely, 2^244001117021 is an apocalyptic number.

It is an amenable number.

244001117021 is a deficient number, since it is larger than the sum of its proper divisors (3731615779).

244001117021 is an equidigital number, since it uses as much as digits as its factorization.

244001117021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097019.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 244001117021 its reverse (120711100442), we get a palindrome (364712217463).

The spelling of 244001117021 in words is "two hundred forty-four billion, one million, one hundred seventeen thousand, twenty-one".