210200210100 has 108 divisors (see below), whose sum is σ = 671292370476. Its totient is φ = 54995765760.

The previous prime is 210200210089. The next prime is 210200210119. The reversal of 210200210100 is 1012002012.

It can be written as a sum of positive squares in 6 ways, for example, as 27484997796 + 182715212304 = 165786^2 + 427452^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2155657 + ... + 2251056.

It is an arithmetic number, because the mean of its divisors is an integer number (6215670097).

Almost surely, 2^210200210100 is an apocalyptic number.

210200210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210200210100 is an abundant number, since it is smaller than the sum of its proper divisors (461092160376).

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

210200210100 is a wasteful number, since it uses less digits than its factorization.

210200210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406786 (or 4406776 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210200210100 its reverse (1012002012), we get a palindrome (211212212112).

The spelling of 210200210100 in words is "two hundred ten billion, two hundred million, two hundred ten thousand, one hundred".