200100121001 has 32 divisors (see below), whose sum is σ = 236204398080. Its totient is φ = 167455897600.

The previous prime is 200100120989. The next prime is 200100121019. The reversal of 200100121001 is 100121001002.

It is a cyclic number.

It is not a de Polignac number, because 200100121001 - 2⁶ = 200100120937 is a prime.

It is a super-2 number, since 2×200100121001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200100121001.

It is not an unprimeable number, because it can be changed into a prime (200100121021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15119255 + ... + 15132483.

It is an arithmetic number, because the mean of its divisors is an integer number (7381387440).

Almost surely, 2^200100121001 is an apocalyptic number.

It is an amenable number.

200100121001 is a deficient number, since it is larger than the sum of its proper divisors (36104277079).

200100121001 is a wasteful number, since it uses less digits than its factorization.

200100121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 200100121001 its reverse (100121001002), we get a palindrome (300221122003).

The spelling of 200100121001 in words is "two hundred billion, one hundred million, one hundred twenty-one thousand, one".