2110100202109 has 4 divisors (see below), whose sum is σ = 2130992283420. Its totient is φ = 2089208120800.

The previous prime is 2110100202101. The next prime is 2110100202121. The reversal of 2110100202109 is 9012020010112.

It is a happy number.

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 1124045244100 + 986054958009 = 1060210^2 + 993003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110100202109 - 2³ = 2110100202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110100202101) 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, 10446040504 + ... + 10446040705.

It is an arithmetic number, because the mean of its divisors is an integer number (532748070855).

Almost surely, 2^{2110100202109} is an apocalyptic number.

It is an amenable number.

2110100202109 is a deficient number, since it is larger than the sum of its proper divisors (20892081311).

2110100202109 is a wasteful number, since it uses less digits than its factorization.

2110100202109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20892081310.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 2110100202109 in words is "two trillion, one hundred ten billion, one hundred million, two hundred two thousand, one hundred nine".