210104210 has 16 divisors (see below), whose sum is σ = 378567000. Its totient is φ = 83957376.

The previous prime is 210104179. The next prime is 210104233. The reversal of 210104210 is 12401012.

It can be written as a sum of positive squares in 4 ways, for example, as 185313769 + 24790441 = 13613^2 + 4979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210104191 and 210104200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 20504.

Almost surely, 2^210104210 is an apocalyptic number.

210104210 is a deficient number, since it is larger than the sum of its proper divisors (168462790).

210104210 is a wasteful number, since it uses less digits than its factorization.

210104210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 210104210 is about 14494.9718868303. The cubic root of 210104210 is about 594.4904990344.

Adding to 210104210 its reverse (12401012), we get a palindrome (222505222).

The spelling of 210104210 in words is "two hundred ten million, one hundred four thousand, two hundred ten".