210100323220 has 24 divisors (see below), whose sum is σ = 445579105608. Its totient is φ = 83208048000.

The previous prime is 210100323179. The next prime is 210100323253. The reversal of 210100323220 is 22323001012.

It can be written as a sum of positive squares in 4 ways, for example, as 57616321156 + 152484002064 = 240034^2 + 390492^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210100323194 and 210100323203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52003011 + ... + 52007050.

It is an arithmetic number, because the mean of its divisors is an integer number (18565796067).

Almost surely, 2^210100323220 is an apocalyptic number.

210100323220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210100323220 is an abundant number, since it is smaller than the sum of its proper divisors (235478782388).

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

210100323220 is a wasteful number, since it uses less digits than its factorization.

210100323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104010171 (or 104010169 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 210100323220 its reverse (22323001012), we get a palindrome (232423324232).

The spelling of 210100323220 in words is "two hundred ten billion, one hundred million, three hundred twenty-three thousand, two hundred twenty".