100343221 has 8 divisors (see below), whose sum is σ = 109548000. Its totient is φ = 91152240.

The previous prime is 100343207. The next prime is 100343233. The reversal of 100343221 is 122343001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100343221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100343195 and 100343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100343251) 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, 17130 + ... + 22228.

It is an arithmetic number, because the mean of its divisors is an integer number (13693500).

Almost surely, 2^100343221 is an apocalyptic number.

100343221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100343221 is a deficient number, since it is larger than the sum of its proper divisors (9204779).

100343221 is a wasteful number, since it uses less digits than its factorization.

100343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899.

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

The square root of 100343221 is about 10017.1463501339. The cubic root of 100343221 is about 464.6893072350.

Adding to 100343221 its reverse (122343001), we get a palindrome (222686222).

The spelling of 100343221 in words is "one hundred million, three hundred forty-three thousand, two hundred twenty-one".