210020224 has 32 divisors (see below), whose sum is σ = 440425800. Its totient is φ = 99482112.

The previous prime is 210020221. The next prime is 210020231. The reversal of 210020224 is 422020012.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40747 + ... + 45610.

Almost surely, 2^210020224 is an apocalyptic number.

It is an amenable number.

210020224 is an abundant number, since it is smaller than the sum of its proper divisors (230405576).

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

210020224 is an equidigital number, since it uses as much as digits as its factorization.

210020224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86390 (or 86378 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 210020224 is about 14492.0745236836. The cubic root of 210020224 is about 594.4112755968.

Adding to 210020224 its reverse (422020012), we get a palindrome (632040236).

The spelling of 210020224 in words is "two hundred ten million, twenty thousand, two hundred twenty-four".