100666211 has 4 divisors (see below), whose sum is σ = 100689024. Its totient is φ = 100643400.

The previous prime is 100666171. The next prime is 100666219. The reversal of 100666211 is 112666001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100666211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100666219) 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, 2435 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (25172256).

Almost surely, 2^100666211 is an apocalyptic number.

100666211 is a deficient number, since it is larger than the sum of its proper divisors (22813).

100666211 is an equidigital number, since it uses as much as digits as its factorization.

100666211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22812.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 100666211 is about 10033.2552544027. The cubic root of 100666211 is about 465.1873619650.

The spelling of 100666211 in words is "one hundred million, six hundred sixty-six thousand, two hundred eleven".