100320112221 has 12 divisors (see below), whose sum is σ = 155598541632. Its totient is φ = 57325778328.

The previous prime is 100320112201. The next prime is 100320112223. The reversal of 100320112221 is 122211023001.

It is not a de Polignac number, because 100320112221 - 2⁹ = 100320111709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100320112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341224725 + ... + 341225018.

It is an arithmetic number, because the mean of its divisors is an integer number (12966545136).

Almost surely, 2^100320112221 is an apocalyptic number.

It is an amenable number.

100320112221 is a deficient number, since it is larger than the sum of its proper divisors (55278429411).

100320112221 is an equidigital number, since it uses as much as digits as its factorization.

100320112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682449760 (or 682449753 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100320112221 its reverse (122211023001), we get a palindrome (222531135222).

The spelling of 100320112221 in words is "one hundred billion, three hundred twenty million, one hundred twelve thousand, two hundred twenty-one".