100021100210200 has 144 divisors (see below), whose sum is σ = 261799452043920. Its totient is φ = 35325177381120.

The previous prime is 100021100210189. The next prime is 100021100210201. The reversal of 100021100210200 is 2012001120001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021100210201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34985332 + ... + 37736131.

It is an arithmetic number, because the mean of its divisors is an integer number (1818051750305).

Almost surely, 2^{100021100210200} is an apocalyptic number.

100021100210200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021100210200 is an abundant number, since it is smaller than the sum of its proper divisors (161778351833720).

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

100021100210200 is a wasteful number, since it uses less digits than its factorization.

100021100210200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72721538 (or 72721506 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100021100210200 its reverse (2012001120001), we get a palindrome (102033101330201).

The spelling of 100021100210200 in words is "one hundred trillion, twenty-one billion, one hundred million, two hundred ten thousand, two hundred".