100001211 has 8 divisors (see below), whose sum is σ = 134655504. Its totient is φ = 66007200.

The previous prime is 100001207. The next prime is 100001219. The reversal of 100001211 is 112100001.

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

It is not a de Polignac number, because 100001211 - 2² = 100001207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100001211.

It is not an unprimeable number, because it can be changed into a prime (100001219) 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 in 7 ways as a sum of consecutive naturals, for example, 164716 + ... + 165321.

It is an arithmetic number, because the mean of its divisors is an integer number (16831938).

Almost surely, 2^100001211 is an apocalyptic number.

100001211 is a deficient number, since it is larger than the sum of its proper divisors (34654293).

100001211 is a wasteful number, since it uses less digits than its factorization.

100001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330141.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 100001211 is about 10000.0605498167. The cubic root of 100001211 is about 464.1607570084.

Adding to 100001211 its reverse (112100001), we get a palindrome (212101212).

It can be divided in two parts, 10000 and 1211, that added together give a palindrome (11211).

The spelling of 100001211 in words is "one hundred million, one thousand, two hundred eleven".