211100211010 has 32 divisors (see below), whose sum is σ = 409248130032. Its totient is φ = 77937361920.

The previous prime is 211100210917. The next prime is 211100211011. The reversal of 211100211010 is 10112001112.

It can be written as a sum of positive squares in 8 ways, for example, as 109014209929 + 102086001081 = 330173^2 + 319509^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (211100211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423990 + ... + 1565230.

Almost surely, 2^211100211010 is an apocalyptic number.

211100211010 is a deficient number, since it is larger than the sum of its proper divisors (198147919022).

211100211010 is a wasteful number, since it uses less digits than its factorization.

211100211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152758.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 211100211010 its reverse (10112001112), we get a palindrome (221212212122).

The spelling of 211100211010 in words is "two hundred eleven billion, one hundred million, two hundred eleven thousand, ten".