200120220221020 has 384 divisors, whose sum is σ = 500583795247872. Its totient is φ = 66393833472000.

The previous prime is 200120220221017. The next prime is 200120220221039. The reversal of 200120220221020 is 20122022021002.

200120220221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 200120220220985 and 200120220221003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3777751254 + ... + 3777804226.

It is an arithmetic number, because the mean of its divisors is an integer number (1303603633458).

Almost surely, 2^{200120220221020} is an apocalyptic number.

200120220221020 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 200120220221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250291897623936).

200120220221020 is an abundant number, since it is smaller than the sum of its proper divisors (300463575026852).

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

200120220221020 is a wasteful number, since it uses less digits than its factorization.

200120220221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53321 (or 53319 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 200120220221020 its reverse (20122022021002), we get a palindrome (220242242242022).

It can be divided in two parts, 2001202 and 20221020, that added together give a palindrome (22222222).

The spelling of 200120220221020 in words is "two hundred trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, twenty".