200010121001 has 4 divisors (see below), whose sum is σ = 200118412032. Its totient is φ = 199901829972.

The previous prime is 200010120979. The next prime is 200010121007. The reversal of 200010121001 is 100121010002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200010121001 - 2³⁴ = 182830251817 is a prime.

It is a super-2 number, since 2×200010121001² (a number of 23 digits) contains 22 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 200010121001.

It is not an unprimeable number, because it can be changed into a prime (200010121007) 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, 54142745 + ... + 54146438.

It is an arithmetic number, because the mean of its divisors is an integer number (50029603008).

Almost surely, 2^200010121001 is an apocalyptic number.

It is an amenable number.

200010121001 is a deficient number, since it is larger than the sum of its proper divisors (108291031).

200010121001 is a wasteful number, since it uses less digits than its factorization.

200010121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108291030.

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

Adding to 200010121001 its reverse (100121010002), we get a palindrome (300131131003).

The spelling of 200010121001 in words is "two hundred billion, ten million, one hundred twenty-one thousand, one".