200121110220 has 48 divisors (see below), whose sum is σ = 561213380448. Its totient is φ = 53282365440.

The previous prime is 200121110141. The next prime is 200121110243. The reversal of 200121110220 is 22011121002.

200121110220 is digitally balanced in base 2, 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 200121110196 and 200121110205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563219 + ... + 2640138.

It is an arithmetic number, because the mean of its divisors is an integer number (11691945426).

Almost surely, 2^200121110220 is an apocalyptic number.

200121110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121110220 is an abundant number, since it is smaller than the sum of its proper divisors (361092270228).

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

200121110220 is a wasteful number, since it uses less digits than its factorization.

200121110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204010 (or 5204008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200121110220 its reverse (22011121002), we get a palindrome (222132231222).

The spelling of 200121110220 in words is "two hundred billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".