210042214 has 4 divisors (see below), whose sum is σ = 315063324. Its totient is φ = 105021106.

The previous prime is 210042199. The next prime is 210042257. The reversal of 210042214 is 412240012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52510552 + ... + 52510555.

It is an arithmetic number, because the mean of its divisors is an integer number (78765831).

Almost surely, 2^210042214 is an apocalyptic number.

210042214 is a deficient number, since it is larger than the sum of its proper divisors (105021110).

210042214 is a wasteful number, since it uses less digits than its factorization.

210042214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105021109.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 210042214 is about 14492.8331943758. The cubic root of 210042214 is about 594.4320206589.

Adding to 210042214 its reverse (412240012), we get a palindrome (622282226).

The spelling of 210042214 in words is "two hundred ten million, forty-two thousand, two hundred fourteen".