211082101 has 4 divisors (see below), whose sum is σ = 213453900. Its totient is φ = 208710304.

The previous prime is 211082087. The next prime is 211082107. The reversal of 211082101 is 101280112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121022001 + 90060100 = 11001^2 + 9490^2 .

It is a cyclic number.

It is not a de Polignac number, because 211082101 - 2⁷ = 211081973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211082107) 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, 1185766 + ... + 1185943.

It is an arithmetic number, because the mean of its divisors is an integer number (53363475).

Almost surely, 2^211082101 is an apocalyptic number.

It is an amenable number.

211082101 is a deficient number, since it is larger than the sum of its proper divisors (2371799).

211082101 is an equidigital number, since it uses as much as digits as its factorization.

211082101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371798.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 211082101 is about 14528.6648044478. The cubic root of 211082101 is about 595.4113869908.

The spelling of 211082101 in words is "two hundred eleven million, eighty-two thousand, one hundred one".