102000320221 has 8 divisors (see below), whose sum is σ = 103090627640. Its totient is φ = 100910803968.

The previous prime is 102000320087. The next prime is 102000320237. The reversal of 102000320221 is 122023000201.

It can be written as a sum of positive squares in 4 ways, for example, as 6886676196 + 95113644025 = 82986^2 + 308405^2 .

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 102000320221 - 2²⁷ = 101866102493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000320251) 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, 63265 + ... + 456073.

It is an arithmetic number, because the mean of its divisors is an integer number (12886328455).

Almost surely, 2^102000320221 is an apocalyptic number.

It is an amenable number.

102000320221 is a deficient number, since it is larger than the sum of its proper divisors (1090307419).

102000320221 is an equidigital number, since it uses as much as digits as its factorization.

102000320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395583.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 102000320221 its reverse (122023000201), we get a palindrome (224023320422).

The spelling of 102000320221 in words is "one hundred two billion, three hundred twenty thousand, two hundred twenty-one".