221200202011985 has 8 divisors (see below), whose sum is σ = 303360277045056. Its totient is φ = 151680138522480.

The previous prime is 221200202011979. The next prime is 221200202012029. The reversal of 221200202011985 is 589110202002122.

It is a happy number.

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

It is not a de Polignac number, because 221200202011985 - 2⁸ = 221200202011729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 6320005771771 = 221200202011985 / (2 + 2 + 1 + 2 + 0 + 0 + 2 + 0 + 2 + 0 + 1 + 1 + 9 + 8 + 5).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3160002885851 + ... + 3160002885920.

It is an arithmetic number, because the mean of its divisors is an integer number (37920034630632).

Almost surely, 2^{221200202011985} is an apocalyptic number.

It is an amenable number.

221200202011985 is a deficient number, since it is larger than the sum of its proper divisors (82160075033071).

221200202011985 is an equidigital number, since it uses as much as digits as its factorization.

221200202011985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320005771783.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 221200202011985 in words is "two hundred twenty-one trillion, two hundred billion, two hundred two million, eleven thousand, nine hundred eighty-five".