210000220100 has 144 divisors (see below), whose sum is σ = 519369883200. Its totient is φ = 72999360000.

The previous prime is 210000220061. The next prime is 210000220117. The reversal of 210000220100 is 1022000012.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3189311 + ... + 3254489.

It is an arithmetic number, because the mean of its divisors is an integer number (3606735300).

Almost surely, 2^210000220100 is an apocalyptic number.

210000220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210000220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259684941600).

210000220100 is an abundant number, since it is smaller than the sum of its proper divisors (309369663100).

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

210000220100 is a wasteful number, since it uses less digits than its factorization.

210000220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65334 (or 65327 counting only the distinct ones).

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

Adding to 210000220100 its reverse (1022000012), we get a palindrome (211022220112).

The spelling of 210000220100 in words is "two hundred ten billion, two hundred twenty thousand, one hundred".