2100110121992 has 16 divisors (see below), whose sum is σ = 3938212142700. Its totient is φ = 1049920217280.

The previous prime is 2100110121947. The next prime is 2100110122009. The reversal of 2100110121992 is 2991210110012.

It can be written as a sum of positive squares in 2 ways, for example, as 2100082095556 + 28026436 = 1449166^2 + 5294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16789259 + ... + 16913882.

Almost surely, 2^{2100110121992} is an apocalyptic number.

It is an amenable number.

2100110121992 is a deficient number, since it is larger than the sum of its proper divisors (1838102020708).

2100110121992 is a wasteful number, since it uses less digits than its factorization.

2100110121992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33710936 (or 33710932 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2100110121992 in words is "two trillion, one hundred billion, one hundred ten million, one hundred twenty-one thousand, nine hundred ninety-two".