10321211021 has 16 divisors (see below), whose sum is σ = 11642738688. Its totient is φ = 9064599600.

The previous prime is 10321210997. The next prime is 10321211029. The reversal of 10321211021 is 12011212301.

10321211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10321211021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10321210987 and 10321211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321211029) 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 15 ways as a sum of consecutive naturals, for example, 174386 + ... + 225948.

It is an arithmetic number, because the mean of its divisors is an integer number (727671168).

Almost surely, 2^10321211021 is an apocalyptic number.

10321211021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10321211021 is a deficient number, since it is larger than the sum of its proper divisors (1321527667).

10321211021 is a wasteful number, since it uses less digits than its factorization.

10321211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52192.

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

Adding to 10321211021 its reverse (12011212301), we get a palindrome (22332423322).

The spelling of 10321211021 in words is "ten billion, three hundred twenty-one million, two hundred eleven thousand, twenty-one".