200021120201986 has 16 divisors (see below), whose sum is σ = 303795119456064. Its totient is φ = 98763896456784.

The previous prime is 200021120201933. The next prime is 200021120201993. The reversal of 200021120201986 is 689102021120002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953967030 + ... + 1954069393.

It is an arithmetic number, because the mean of its divisors is an integer number (18987194966004).

Almost surely, 2^{200021120201986} is an apocalyptic number.

200021120201986 is a deficient number, since it is larger than the sum of its proper divisors (103773999254078).

200021120201986 is a wasteful number, since it uses less digits than its factorization.

200021120201986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908036745.

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 200021120201986 its reverse (689102021120002), we get a palindrome (889123141321988).

The spelling of 200021120201986 in words is "two hundred trillion, twenty-one billion, one hundred twenty million, two hundred one thousand, nine hundred eighty-six".