100200020019990 has 128 divisors (see below), whose sum is σ = 276215903193600. Its totient is φ = 23006897648640.

The previous prime is 100200020019977. The next prime is 100200020019991. The reversal of 100200020019990 is 99910020002001.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200020019991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24115296 + ... + 27963324.

It is an arithmetic number, because the mean of its divisors is an integer number (2157936743700).

Almost surely, 2^{100200020019990} is an apocalyptic number.

100200020019990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100200020019990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138107951596800).

100200020019990 is an abundant number, since it is smaller than the sum of its proper divisors (176015883173610).

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

100200020019990 is a wasteful number, since it uses less digits than its factorization.

100200020019990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852222.

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 100200020019990 in words is "one hundred trillion, two hundred billion, twenty million, nineteen thousand, nine hundred ninety".