200001001220 has 12 divisors (see below), whose sum is σ = 420002102604. Its totient is φ = 80000400480.

The previous prime is 200001001217. The next prime is 200001001237. The reversal of 200001001220 is 22100100002.

200001001220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140043602176 + 59957399044 = 374224^2 + 244862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200001001198 and 200001001207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000025011 + ... + 5000025050.

It is an arithmetic number, because the mean of its divisors is an integer number (35000175217).

Almost surely, 2^200001001220 is an apocalyptic number.

200001001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001001220 is an abundant number, since it is smaller than the sum of its proper divisors (220001101384).

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

200001001220 is a wasteful number, since it uses less digits than its factorization.

200001001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000050070 (or 10000050068 counting only the distinct ones).

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

Adding to 200001001220 its reverse (22100100002), we get a palindrome (222101101222).

The spelling of 200001001220 in words is "two hundred billion, one million, one thousand, two hundred twenty".