200111001021020 has 12 divisors (see below), whose sum is σ = 420233102144184. Its totient is φ = 80044400408400.

The previous prime is 200111001021011. The next prime is 200111001021031. The reversal of 200111001021020 is 20120100111002.

It is a junction number, because it is equal to n+sod(n) for n = 200111001020992 and 200111001021010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5002775025506 + ... + 5002775025545.

It is an arithmetic number, because the mean of its divisors is an integer number (35019425178682).

Almost surely, 2^{200111001021020} is an apocalyptic number.

200111001021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200111001021020 is an abundant number, since it is smaller than the sum of its proper divisors (220122101123164).

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

200111001021020 is a wasteful number, since it uses less digits than its factorization.

200111001021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005550051060 (or 10005550051058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200111001021020 its reverse (20120100111002), we get a palindrome (220231101132022).

The spelling of 200111001021020 in words is "two hundred trillion, one hundred eleven billion, one million, twenty-one thousand, twenty".