10021300221 has 4 divisors (see below), whose sum is σ = 13361733632. Its totient is φ = 6680866812.

The previous prime is 10021300193. The next prime is 10021300241. The reversal of 10021300221 is 12200312001.

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 not a de Polignac number, because 10021300221 - 2³³ = 1431365629 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 = 10021300197 and 10021300206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021300241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670216701 + ... + 1670216706.

It is an arithmetic number, because the mean of its divisors is an integer number (3340433408).

Almost surely, 2^10021300221 is an apocalyptic number.

It is an amenable number.

10021300221 is a deficient number, since it is larger than the sum of its proper divisors (3340433411).

10021300221 is an equidigital number, since it uses as much as digits as its factorization.

10021300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340433410.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10021300221 its reverse (12200312001), we get a palindrome (22221612222).

The spelling of 10021300221 in words is "ten billion, twenty-one million, three hundred thousand, two hundred twenty-one".