200101210020001 has 4 divisors (see below), whose sum is σ = 204981727337604. Its totient is φ = 195220692702400.

The previous prime is 200101210019947. The next prime is 200101210020017. The reversal of 200101210020001 is 100020012101002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7641774669376 + 192459435350625 = 2764376^2 + 13872975^2 .

It is a cyclic number.

It is not a de Polignac number, because 200101210020001 - 2⁷ = 200101210019873 is a prime.

It is a super-3 number, since 3×200101210020001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200101210020001.

It is not an unprimeable number, because it can be changed into a prime (200101210720001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440258658740 + ... + 2440258658821.

It is an arithmetic number, because the mean of its divisors is an integer number (51245431834401).

Almost surely, 2^{200101210020001} is an apocalyptic number.

It is an amenable number.

200101210020001 is a deficient number, since it is larger than the sum of its proper divisors (4880517317603).

200101210020001 is an equidigital number, since it uses as much as digits as its factorization.

200101210020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880517317602.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200101210020001 its reverse (100020012101002), we get a palindrome (300121222121003).

The spelling of 200101210020001 in words is "two hundred trillion, one hundred one billion, two hundred ten million, twenty thousand, one".