210221134 has 8 divisors (see below), whose sum is σ = 315824040. Its totient is φ = 104946456.

The previous prime is 210221119. The next prime is 210221153. The reversal of 210221134 is 431122012.

210221134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80449 + ... + 83020.

It is an arithmetic number, because the mean of its divisors is an integer number (39478005).

Almost surely, 2^210221134 is an apocalyptic number.

210221134 is a deficient number, since it is larger than the sum of its proper divisors (105602906).

210221134 is a wasteful number, since it uses less digits than its factorization.

210221134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164114.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 210221134 is about 14499.0045865225. The cubic root of 210221134 is about 594.6007575212.

Adding to 210221134 its reverse (431122012), we get a palindrome (641343146).

The spelling of 210221134 in words is "two hundred ten million, two hundred twenty-one thousand, one hundred thirty-four".