10021021321 has 8 divisors (see below), whose sum is σ = 10215100800. Its totient is φ = 9827749680.

The previous prime is 10021021303. The next prime is 10021021337. The reversal of 10021021321 is 12312012001.

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 10021021321 - 2⁵ = 10021021289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021021421) 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, 176881 + ... + 226558.

It is an arithmetic number, because the mean of its divisors is an integer number (1276887600).

Almost surely, 2^10021021321 is an apocalyptic number.

It is an amenable number.

10021021321 is a deficient number, since it is larger than the sum of its proper divisors (194079479).

10021021321 is an equidigital number, since it uses as much as digits as its factorization.

10021021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403919.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10021021321 its reverse (12312012001), we get a palindrome (22333033322).

The spelling of 10021021321 in words is "ten billion, twenty-one million, twenty-one thousand, three hundred twenty-one".