100320302221 has 8 divisors (see below), whose sum is σ = 100790983800. Its totient is φ = 99849964032.

The previous prime is 100320302191. The next prime is 100320302237. The reversal of 100320302221 is 122203023001.

It can be written as a sum of positive squares in 4 ways, for example, as 16573730121 + 83746572100 = 128739^2 + 289390^2 .

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 100320302221 - 2¹⁹ = 100319777933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100320302195 and 100320302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320302321) 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, 509461 + ... + 678373.

It is an arithmetic number, because the mean of its divisors is an integer number (12598872975).

Almost surely, 2^100320302221 is an apocalyptic number.

It is an amenable number.

100320302221 is a deficient number, since it is larger than the sum of its proper divisors (470681579).

100320302221 is a wasteful number, since it uses less digits than its factorization.

100320302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171695.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100320302221 its reverse (122203023001), we get a palindrome (222523325222).

The spelling of 100320302221 in words is "one hundred billion, three hundred twenty million, three hundred two thousand, two hundred twenty-one".