100184221 has 2 divisors, whose sum is σ = 100184222. Its totient is φ = 100184220.

The previous prime is 100184209. The next prime is 100184233. The reversal of 100184221 is 122481001.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (100184209) and next prime (100184233).

It can be written as a sum of positive squares in only one way, i.e., 94848121 + 5336100 = 9739^2 + 2310^2 .

It is an emirp because it is prime and its reverse (122481001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100184221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100184261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50092110 + 50092111.

It is an arithmetic number, because the mean of its divisors is an integer number (50092111).

Almost surely, 2^100184221 is an apocalyptic number.

It is an amenable number.

100184221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100184221 is an equidigital number, since it uses as much as digits as its factorization.

100184221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 100184221 is about 10009.2068117309. The cubic root of 100184221 is about 464.4437345598.

The spelling of 100184221 in words is "one hundred million, one hundred eighty-four thousand, two hundred twenty-one".