744122231021 has 8 divisors (see below), whose sum is σ = 801702428184. Its totient is φ = 686590608960.

The previous prime is 744122231003. The next prime is 744122231023. The reversal of 744122231021 is 120132221447.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15806775625 + 728315455396 = 125725^2 + 853414^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 744122231021 - 2¹⁰ = 744122229997 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 (744122231023) 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 7 ways as a sum of consecutive naturals, for example, 12111950 + ... + 12173231.

It is an arithmetic number, because the mean of its divisors is an integer number (100212803523).

Almost surely, 2^744122231021 is an apocalyptic number.

It is an amenable number.

744122231021 is a deficient number, since it is larger than the sum of its proper divisors (57580197163).

744122231021 is a wasteful number, since it uses less digits than its factorization.

744122231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24287551.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 744122231021 its reverse (120132221447), we get a palindrome (864254452468).

The spelling of 744122231021 in words is "seven hundred forty-four billion, one hundred twenty-two million, two hundred thirty-one thousand, twenty-one".