100220030321 has 4 divisors (see below), whose sum is σ = 100226694372. Its totient is φ = 100213366272.

The previous prime is 100220030311. The next prime is 100220030327. The reversal of 100220030321 is 123030022001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73016146225 + 27203884096 = 270215^2 + 164936^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220030321 - 2³⁰ = 99146288497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100220030296 and 100220030305.

It is not an unprimeable number, because it can be changed into a prime (100220030327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3309416 + ... + 3339561.

It is an arithmetic number, because the mean of its divisors is an integer number (25056673593).

Almost surely, 2^100220030321 is an apocalyptic number.

It is an amenable number.

100220030321 is a deficient number, since it is larger than the sum of its proper divisors (6664051).

100220030321 is an equidigital number, since it uses as much as digits as its factorization.

100220030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664050.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 100220030321 its reverse (123030022001), we get a palindrome (223250052322).

The spelling of 100220030321 in words is "one hundred billion, two hundred twenty million, thirty thousand, three hundred twenty-one".