210788021106 has 96 divisors (see below), whose sum is σ = 518110320000. Its totient is φ = 61398549504.

The previous prime is 210788021083. The next prime is 210788021107. The reversal of 210788021106 is 601120887012.

It is not an unprimeable number, because it can be changed into a prime (210788021107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6203010 + ... + 6236898.

It is an arithmetic number, because the mean of its divisors is an integer number (5396982500).

Almost surely, 2^210788021106 is an apocalyptic number.

210788021106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 210788021106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259055160000).

210788021106 is an abundant number, since it is smaller than the sum of its proper divisors (307322298894).

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

210788021106 is a wasteful number, since it uses less digits than its factorization.

210788021106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35328 (or 35325 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 210788021106 in words is "two hundred ten billion, seven hundred eighty-eight million, twenty-one thousand, one hundred six".