210150221 has 4 divisors (see below), whose sum is σ = 210458592. Its totient is φ = 209841852.

The previous prime is 210150217. The next prime is 210150223. The reversal of 210150221 is 122051012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210150221 - 2² = 210150217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210150196 and 210150205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210150223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153161 + ... + 154526.

It is an arithmetic number, because the mean of its divisors is an integer number (52614648).

Almost surely, 2^210150221 is an apocalyptic number.

It is an amenable number.

210150221 is a deficient number, since it is larger than the sum of its proper divisors (308371).

210150221 is an equidigital number, since it uses as much as digits as its factorization.

210150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308370.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 210150221 is about 14496.5589365201. The cubic root of 210150221 is about 594.5338919549.

The spelling of 210150221 in words is "two hundred ten million, one hundred fifty thousand, two hundred twenty-one".