200122020 has 144 divisors (see below), whose sum is σ = 703842048. Its totient is φ = 45077760.

The previous prime is 200121991. The next prime is 200122031. The reversal of 200122020 is 20221002.

200122020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200121993 and 200122011.

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 47 ways as a sum of consecutive naturals, for example, 88342 + ... + 90578.

It is an arithmetic number, because the mean of its divisors is an integer number (4887792).

Almost surely, 2^200122020 is an apocalyptic number.

200122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351921024).

200122020 is an abundant number, since it is smaller than the sum of its proper divisors (503720028).

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

200122020 is a wasteful number, since it uses less digits than its factorization.

200122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2325 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 200122020 is about 14146.4490244018. The cubic root of 200122020 is about 584.9224530126.

Adding to 200122020 its reverse (20221002), we get a palindrome (220343022).

The spelling of 200122020 in words is "two hundred million, one hundred twenty-two thousand, twenty".