211242 has 32 divisors (see below), whose sum is σ = 475200. Its totient is φ = 62208.

The previous prime is 211241. The next prime is 211247. The reversal of 211242 is 242112.

211242 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (211241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1884 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (14850).

2²¹¹²⁴² is an apocalyptic number.

211242 is an abundant number, since it is smaller than the sum of its proper divisors (263958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211242 is a wasteful number, since it uses less digits than its factorization.

211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its digits is 32, while the sum is 12.

The square root of 211242 is about 459.6107048362. The cubic root of 211242 is about 59.5561694470.

Adding to 211242 its reverse (242112), we get a palindrome (453354).

The spelling of 211242 in words is "two hundred eleven thousand, two hundred forty-two", and thus it is an iban number.