200120011001 has 8 divisors (see below), whose sum is σ = 211900533480. Its totient is φ = 188340461568.

The previous prime is 200120010991. The next prime is 200120011033. The reversal of 200120011001 is 100110021002.

It can be written as a sum of positive squares in 4 ways, for example, as 124343685376 + 75776325625 = 352624^2 + 275275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200120011001 is a prime.

It is a super-2 number, since 2×200120011001² (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 200120011001.

It is not an unprimeable number, because it can be changed into a prime (200120011061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203645 + ... + 664613.

It is an arithmetic number, because the mean of its divisors is an integer number (26487566685).

Almost surely, 2^200120011001 is an apocalyptic number.

It is an amenable number.

200120011001 is a deficient number, since it is larger than the sum of its proper divisors (11780522479).

200120011001 is a wasteful number, since it uses less digits than its factorization.

200120011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486523.

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

Adding to 200120011001 its reverse (100110021002), we get a palindrome (300230032003).

The spelling of 200120011001 in words is "two hundred billion, one hundred twenty million, eleven thousand, one".