208210244100 has 288 divisors, whose sum is σ = 650480033280. Its totient is φ = 51250268160.

The previous prime is 208210244051. The next prime is 208210244113. The reversal of 208210244100 is 1442012802.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 134068924 + ... + 134070476.

Almost surely, 2^208210244100 is an apocalyptic number.

208210244100 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 208210244100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325240016640).

208210244100 is an abundant number, since it is smaller than the sum of its proper divisors (442269789180).

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

208210244100 is a wasteful number, since it uses less digits than its factorization.

208210244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 208210244100 its reverse (1442012802), we get a palindrome (209652256902).

The spelling of 208210244100 in words is "two hundred eight billion, two hundred ten million, two hundred forty-four thousand, one hundred".