200110120201021 has 4 divisors (see below), whose sum is σ = 207010469173500. Its totient is φ = 193209771228544.

The previous prime is 200110120200983. The next prime is 200110120201031. The reversal of 200110120201021 is 120102021011002.

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 92235183327225 + 107874936873796 = 9603915^2 + 10386286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200110120201021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200110120200992 and 200110120201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200110120201031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450174486196 + ... + 3450174486253.

It is an arithmetic number, because the mean of its divisors is an integer number (51752617293375).

Almost surely, 2^{200110120201021} is an apocalyptic number.

It is an amenable number.

200110120201021 is a deficient number, since it is larger than the sum of its proper divisors (6900348972479).

200110120201021 is an equidigital number, since it uses as much as digits as its factorization.

200110120201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900348972478.

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

Adding to 200110120201021 its reverse (120102021011002), we get a palindrome (320212141212023).

The spelling of 200110120201021 in words is "two hundred trillion, one hundred ten billion, one hundred twenty million, two hundred one thousand, twenty-one".