210233221 has 8 divisors (see below), whose sum is σ = 230349600. Its totient is φ = 190284240.

The previous prime is 210233171. The next prime is 210233239. The reversal of 210233221 is 122332012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210233221 - 2¹⁷ = 210102149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210233195 and 210233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210213221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39211 + ... + 44248.

It is an arithmetic number, because the mean of its divisors is an integer number (28793700).

Almost surely, 2^210233221 is an apocalyptic number.

It is an amenable number.

210233221 is a deficient number, since it is larger than the sum of its proper divisors (20116379).

210233221 is a wasteful number, since it uses less digits than its factorization.

210233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83699.

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

The square root of 210233221 is about 14499.4214022491. The cubic root of 210233221 is about 594.6121531430.

Adding to 210233221 its reverse (122332012), we get a palindrome (332565233).

The spelling of 210233221 in words is "two hundred ten million, two hundred thirty-three thousand, two hundred twenty-one".