103221310021 has 4 divisors (see below), whose sum is σ = 103302016000. Its totient is φ = 103140604044.

The previous prime is 103221309967. The next prime is 103221310043. The reversal of 103221310021 is 120013122301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103221310021 - 2²⁵ = 103187755589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103221309977 and 103221310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221310121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40351071 + ... + 40353628.

It is an arithmetic number, because the mean of its divisors is an integer number (25825504000).

Almost surely, 2^103221310021 is an apocalyptic number.

It is an amenable number.

103221310021 is a deficient number, since it is larger than the sum of its proper divisors (80705979).

103221310021 is an equidigital number, since it uses as much as digits as its factorization.

103221310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80705978.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 103221310021 its reverse (120013122301), we get a palindrome (223234432322).

The spelling of 103221310021 in words is "one hundred three billion, two hundred twenty-one million, three hundred ten thousand, twenty-one".