20110200200109 has 12 divisors (see below), whose sum is σ = 29048108612796. Its totient is φ = 13406780907072.

The previous prime is 20110200200081. The next prime is 20110200200119. The reversal of 20110200200109 is 90100200201102.

It can be written as a sum of positive squares in 2 ways, for example, as 14205285620100 + 5904914580009 = 3768990^2 + 2430003^2 .

It is not a de Polignac number, because 20110200200109 - 2¹² = 20110200196013 is a prime.

It is a super-2 number, since 2×20110200200109² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20110200200091 and 20110200200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110200200119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8140179 + ... + 10319055.

It is an arithmetic number, because the mean of its divisors is an integer number (2420675717733).

Almost surely, 2^{20110200200109} is an apocalyptic number.

It is an amenable number.

20110200200109 is a deficient number, since it is larger than the sum of its proper divisors (8937908412687).

20110200200109 is a wasteful number, since it uses less digits than its factorization.

20110200200109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204396 (or 3204393 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20110200200109 in words is "twenty trillion, one hundred ten billion, two hundred million, two hundred thousand, one hundred nine".