2100200999 has 8 divisors (see below), whose sum is σ = 2262432480. Its totient is φ = 1938066336.

The previous prime is 2100200987. The next prime is 2100201011. The reversal of 2100200999 is 9990020012.

It is an interprime number because it is at equal distance from previous prime (2100200987) and next prime (2100201011).

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-2100200999 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 (2100200939) 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, 24497 + ... + 69285.

It is an arithmetic number, because the mean of its divisors is an integer number (282804060).

Almost surely, 2^2100200999 is an apocalyptic number.

2100200999 is a deficient number, since it is larger than the sum of its proper divisors (162231481).

2100200999 is a wasteful number, since it uses less digits than its factorization.

2100200999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48409.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 2100200999 is about 45827.9499759699. The cubic root of 2100200999 is about 1280.6200200541.

The spelling of 2100200999 in words is "two billion, one hundred million, two hundred thousand, nine hundred ninety-nine".