10001211 has 16 divisors (see below), whose sum is σ = 14942208. Its totient is φ = 5896800.

The previous prime is 10001209. The next prime is 10001213. The reversal of 10001211 is 11210001.

It is an interprime number because it is at equal distance from previous prime (10001209) and next prime (10001213).

It is not a de Polignac number, because 10001211 - 2¹ = 10001209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10001211.

It is not an unprimeable number, because it can be changed into a prime (10001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2875 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (933888).

Almost surely, 2^10001211 is an apocalyptic number.

10001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10001211 is a deficient number, since it is larger than the sum of its proper divisors (4940997).

10001211 is a wasteful number, since it uses less digits than its factorization.

10001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242.

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

The square root of 10001211 is about 3162.4691302841. The cubic root of 10001211 is about 215.4521653869.

Adding to 10001211 its reverse (11210001), we get a palindrome (21211212).

Multiplying 10001211 by its reverse (11210001), we get a palindrome (112113585311211).

It can be divided in two parts, 1000 and 1211, that added together give a triangular number (2211 = T₆₆).

The spelling of 10001211 in words is "ten million, one thousand, two hundred eleven".