100210221187 has 2 divisors, whose sum is σ = 100210221188. Its totient is φ = 100210221186.

The previous prime is 100210221169. The next prime is 100210221233. The reversal of 100210221187 is 781122012001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100210221187 - 2¹¹ = 100210219139 is a prime.

It is not a weakly prime, because it can be changed into another prime (100210221127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105110593 + 50105110594.

It is an arithmetic number, because the mean of its divisors is an integer number (50105110594).

Almost surely, 2^100210221187 is an apocalyptic number.

100210221187 is a deficient number, since it is larger than the sum of its proper divisors (1).

100210221187 is an equidigital number, since it uses as much as digits as its factorization.

100210221187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 100210221187 its reverse (781122012001), we get a palindrome (881332233188).

The spelling of 100210221187 in words is "one hundred billion, two hundred ten million, two hundred twenty-one thousand, one hundred eighty-seven".