211214305 has 8 divisors (see below), whose sum is σ = 253536192. Its totient is φ = 168918768.

The previous prime is 211214291. The next prime is 211214357. The reversal of 211214305 is 503412112.

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

It is a cyclic number.

It is not a de Polignac number, because 211214305 - 2²⁵ = 177659873 is a prime.

It is a super-2 number, since 2×211214305² = 89222965273266050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23814 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (31692024).

Almost surely, 2^211214305 is an apocalyptic number.

It is an amenable number.

211214305 is a deficient number, since it is larger than the sum of its proper divisors (42321887).

211214305 is an equidigital number, since it uses as much as digits as its factorization.

211214305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 211214305 is about 14533.2138565425. The cubic root of 211214305 is about 595.5356661832.

Adding to 211214305 its reverse (503412112), we get a palindrome (714626417).

The spelling of 211214305 in words is "two hundred eleven million, two hundred fourteen thousand, three hundred five".