210223100 has 36 divisors (see below), whose sum is σ = 459803904. Its totient is φ = 83422080.

The previous prime is 210223099. The next prime is 210223109. The reversal of 210223100 is 1322012.

It is a happy number.

It is a super-2 number, since 2×210223100² = 88387503547220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210223109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4424 + ... + 20976.

Almost surely, 2^210223100 is an apocalyptic number.

210223100 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 210223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229901952).

210223100 is an abundant number, since it is smaller than the sum of its proper divisors (249580804).

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

210223100 is a wasteful number, since it uses less digits than its factorization.

210223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16694 (or 16687 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 210223100 is about 14499.0723841217. The cubic root of 210223100 is about 594.6026110955.

Adding to 210223100 its reverse (1322012), we get a palindrome (211545112).

The spelling of 210223100 in words is "two hundred ten million, two hundred twenty-three thousand, one hundred".