100341231221 has 24 divisors (see below), whose sum is σ = 132871005504. Its totient is φ = 74788486080.

The previous prime is 100341231217. The next prime is 100341231247. The reversal of 100341231221 is 122132143001.

It is not a de Polignac number, because 100341231221 - 2² = 100341231217 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 = 100341231193 and 100341231202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100341231271) 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 23 ways as a sum of consecutive naturals, for example, 4034600 + ... + 4059393.

It is an arithmetic number, because the mean of its divisors is an integer number (5536291896).

Almost surely, 2^100341231221 is an apocalyptic number.

100341231221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100341231221 is a deficient number, since it is larger than the sum of its proper divisors (32529774283).

100341231221 is a wasteful number, since it uses less digits than its factorization.

100341231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094041 (or 8094034 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 100341231221 its reverse (122132143001), we get a palindrome (222473374222).

The spelling of 100341231221 in words is "one hundred billion, three hundred forty-one million, two hundred thirty-one thousand, two hundred twenty-one".