210442211 has 12 divisors (see below), whose sum is σ = 246275568. Its totient is φ = 179291952.

The previous prime is 210442189. The next prime is 210442231. The reversal of 210442211 is 112244012.

It is not a de Polignac number, because 210442211 - 2⁶ = 210442147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210442211.

It is not an unprimeable number, because it can be changed into a prime (210442231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4676 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (20522964).

Almost surely, 2^210442211 is an apocalyptic number.

210442211 is a deficient number, since it is larger than the sum of its proper divisors (35833357).

210442211 is a wasteful number, since it uses less digits than its factorization.

210442211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25898 (or 25891 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 210442211 is about 14506.6264513842. The cubic root of 210442211 is about 594.8091198551.

Adding to 210442211 its reverse (112244012), we get a palindrome (322686223).

The spelling of 210442211 in words is "two hundred ten million, four hundred forty-two thousand, two hundred eleven".