100410221 has 4 divisors (see below), whose sum is σ = 100753212. Its totient is φ = 100067232.

The previous prime is 100410199. The next prime is 100410223. The reversal of 100410221 is 122014001.

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 70324996 + 30085225 = 8386^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 100410221 - 2¹⁴ = 100393837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100410223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171056 + ... + 171641.

It is an arithmetic number, because the mean of its divisors is an integer number (25188303).

Almost surely, 2^100410221 is an apocalyptic number.

It is an amenable number.

100410221 is a deficient number, since it is larger than the sum of its proper divisors (342991).

100410221 is an equidigital number, since it uses as much as digits as its factorization.

100410221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342990.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 100410221 is about 10020.4900578764. The cubic root of 100410221 is about 464.7927098576.

Adding to 100410221 its reverse (122014001), we get a palindrome (222424222).

The spelling of 100410221 in words is "one hundred million, four hundred ten thousand, two hundred twenty-one".