211100119985 has 8 divisors (see below), whose sum is σ = 253338726120. Its totient is φ = 168867707904.

The previous prime is 211100119957. The next prime is 211100119991. The reversal of 211100119985 is 589911001112.

It can be written as a sum of positive squares in 4 ways, for example, as 20833169569 + 190266950416 = 144337^2 + 436196^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 211100119985 - 2²⁰ = 211099071409 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1473200 + ... + 1610129.

It is an arithmetic number, because the mean of its divisors is an integer number (31667340765).

Almost surely, 2^211100119985 is an apocalyptic number.

It is an amenable number.

211100119985 is a deficient number, since it is larger than the sum of its proper divisors (42238606135).

211100119985 is a wasteful number, since it uses less digits than its factorization.

211100119985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097027.

The product of its (nonzero) digits is 6480, while the sum is 38.

The spelling of 211100119985 in words is "two hundred eleven billion, one hundred million, one hundred nineteen thousand, nine hundred eighty-five".