200100121122001 has 4 divisors (see below), whose sum is σ = 200100189600100. Its totient is φ = 200100052643904.

The previous prime is 200100121121987. The next prime is 200100121122017. The reversal of 200100121122001 is 100221121001002.

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 79069869231376 + 121030251890625 = 8892124^2 + 11001375^2 .

It is a cyclic number.

It is not a de Polignac number, because 200100121122001 - 2²⁹ = 200099584251089 is a prime.

It is a super-3 number, since 3×200100121122001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200100121122061) 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, 29650956 + ... + 35768413.

It is an arithmetic number, because the mean of its divisors is an integer number (50025047400025).

Almost surely, 2^{200100121122001} is an apocalyptic number.

It is an amenable number.

200100121122001 is a deficient number, since it is larger than the sum of its proper divisors (68478099).

200100121122001 is an equidigital number, since it uses as much as digits as its factorization.

200100121122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68478098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200100121122001 its reverse (100221121001002), we get a palindrome (300321242123003).

The spelling of 200100121122001 in words is "two hundred trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, one".