212305214 has 16 divisors (see below), whose sum is σ = 367844976. Its totient is φ = 90825600.

The previous prime is 212305207. The next prime is 212305237. The reversal of 212305214 is 412503212.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283457 + ... + 284204.

It is an arithmetic number, because the mean of its divisors is an integer number (22990311).

Almost surely, 2^212305214 is an apocalyptic number.

212305214 is a deficient number, since it is larger than the sum of its proper divisors (155539762).

212305214 is a wasteful number, since it uses less digits than its factorization.

212305214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567691.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212305214 is about 14570.6971006881. The cubic root of 212305214 is about 596.5592078187.

Adding to 212305214 its reverse (412503212), we get a palindrome (624808426).

The spelling of 212305214 in words is "two hundred twelve million, three hundred five thousand, two hundred fourteen".