200001122020 has 48 divisors (see below), whose sum is σ = 481827886848. Its totient is φ = 68311071360.

The previous prime is 200001121993. The next prime is 200001122021. The reversal of 200001122020 is 20221100002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 200001121988 and 200001122006.

It is not an unprimeable number, because it can be changed into a prime (200001122021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2679111 + ... + 2752750.

It is an arithmetic number, because the mean of its divisors is an integer number (10038080976).

Almost surely, 2^200001122020 is an apocalyptic number.

200001122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001122020 is an abundant number, since it is smaller than the sum of its proper divisors (281826764828).

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

200001122020 is a wasteful number, since it uses less digits than its factorization.

200001122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432140 (or 5432138 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200001122020 its reverse (20221100002), we get a palindrome (220222222022).

The spelling of 200001122020 in words is "two hundred billion, one million, one hundred twenty-two thousand, twenty".