1003221011021 has 8 divisors (see below), whose sum is σ = 1049080953024. Its totient is φ = 957547872160.

The previous prime is 1003221011011. The next prime is 1003221011053. The reversal of 1003221011021 is 1201101223001.

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 1003221011021 - 2¹⁸ = 1003220748877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1003221010987 and 1003221011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003221011011) 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 in 7 ways as a sum of consecutive naturals, for example, 46689800 + ... + 46711281.

It is an arithmetic number, because the mean of its divisors is an integer number (131135119128).

Almost surely, 2^{1003221011021} is an apocalyptic number.

It is an amenable number.

1003221011021 is a deficient number, since it is larger than the sum of its proper divisors (45859942003).

1003221011021 is an equidigital number, since it uses as much as digits as its factorization.

1003221011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93401571.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1003221011021 its reverse (1201101223001), we get a palindrome (2204322234022).

The spelling of 1003221011021 in words is "one trillion, three billion, two hundred twenty-one million, eleven thousand, twenty-one".