20109100910200 has 48 divisors (see below), whose sum is σ = 46757887839360. Its totient is φ = 8042912928000.

The previous prime is 20109100910179. The next prime is 20109100910291. The reversal of 20109100910200 is 201900190102.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2326741 + ... + 6755140.

It is an arithmetic number, because the mean of its divisors is an integer number (974122663320).

Almost surely, 2^{20109100910200} is an apocalyptic number.

20109100910200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20109100910200 is an abundant number, since it is smaller than the sum of its proper divisors (26648786929160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20109100910200 is a wasteful number, since it uses less digits than its factorization.

20109100910200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092968 (or 9092959 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 20109100910200 in words is "twenty trillion, one hundred nine billion, one hundred million, nine hundred ten thousand, two hundred".