200120122021986 has 48 divisors (see below), whose sum is σ = 443048080834944. Its totient is φ = 65253639985632.

The previous prime is 200120122021969. The next prime is 200120122022027. The reversal of 200120122021986 is 689120221021002.

200120122021986 is a `hidden beast` number, since 20 + 0 + 120 + 1 + 220 + 219 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 200120122021986.

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 23 ways as a sum of consecutive naturals, for example, 59551596 + ... + 62822231.

It is an arithmetic number, because the mean of its divisors is an integer number (9230168350728).

Almost surely, 2^{200120122021986} is an apocalyptic number.

200120122021986 is an abundant number, since it is smaller than the sum of its proper divisors (242927958812958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200120122021986 is a wasteful number, since it uses less digits than its factorization.

200120122021986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122375815 (or 122375812 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

Adding to 200120122021986 its reverse (689120221021002), we get a palindrome (889240343042988).

The spelling of 200120122021986 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, nine hundred eighty-six".