200001220101 has 24 divisors (see below), whose sum is σ = 308219243904. Its totient is φ = 124533002880.

The previous prime is 200001220063. The next prime is 200001220109. The reversal of 200001220101 is 101022100002.

It is not a de Polignac number, because 200001220101 - 2⁷ = 200001219973 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001220109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4969261 + ... + 5009346.

It is an arithmetic number, because the mean of its divisors is an integer number (12842468496).

Almost surely, 2^200001220101 is an apocalyptic number.

It is an amenable number.

200001220101 is a deficient number, since it is larger than the sum of its proper divisors (108218023803).

200001220101 is a wasteful number, since it uses less digits than its factorization.

200001220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978761 (or 9978758 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200001220101 its reverse (101022100002), we get a palindrome (301023320103).

The spelling of 200001220101 in words is "two hundred billion, one million, two hundred twenty thousand, one hundred one".