211242214 has 8 divisors (see below), whose sum is σ = 317821608. Its totient is φ = 105301680.

The previous prime is 211242193. The next prime is 211242233. The reversal of 211242214 is 412242112.

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

It is a junction number, because it is equal to n+sod(n) for n = 211242191 and 211242200.

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, 158887 + ... + 160210.

It is an arithmetic number, because the mean of its divisors is an integer number (39727701).

Almost surely, 2^211242214 is an apocalyptic number.

211242214 is a deficient number, since it is larger than the sum of its proper divisors (106579394).

211242214 is a wasteful number, since it uses less digits than its factorization.

211242214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319430.

The product of its digits is 256, while the sum is 19.

The square root of 211242214 is about 14534.1740047379. The cubic root of 211242214 is about 595.5618955823.

Adding to 211242214 its reverse (412242112), we get a palindrome (623484326).

The spelling of 211242214 in words is "two hundred eleven million, two hundred forty-two thousand, two hundred fourteen".