201110209985 has 16 divisors (see below), whose sum is σ = 241953002112. Its totient is φ = 160474608000.

The previous prime is 201110209957. The next prime is 201110209987. The reversal of 201110209985 is 589902011102.

It is a happy number.

It is not a de Polignac number, because 201110209985 - 2²² = 201106015681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201110209987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6499100 + ... + 6529970.

It is an arithmetic number, because the mean of its divisors is an integer number (15122062632).

Almost surely, 2^201110209985 is an apocalyptic number.

It is an amenable number.

201110209985 is a deficient number, since it is larger than the sum of its proper divisors (40842792127).

201110209985 is a wasteful number, since it uses less digits than its factorization.

201110209985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34184.

The product of its (nonzero) digits is 12960, while the sum is 38.

The spelling of 201110209985 in words is "two hundred one billion, one hundred ten million, two hundred nine thousand, nine hundred eighty-five".