214220312 has 8 divisors (see below), whose sum is σ = 401663100. Its totient is φ = 107110152.

The previous prime is 214220309. The next prime is 214220317. The reversal of 214220312 is 213022412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214220317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13388762 + ... + 13388777.

Almost surely, 2^214220312 is an apocalyptic number.

It is an amenable number.

214220312 is a deficient number, since it is larger than the sum of its proper divisors (187442788).

214220312 is a wasteful number, since it uses less digits than its factorization.

214220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26777545 (or 26777541 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 214220312 is about 14636.2670104095. The cubic root of 214220312 is about 598.3475941767.

Adding to 214220312 its reverse (213022412), we get a palindrome (427242724).

The spelling of 214220312 in words is "two hundred fourteen million, two hundred twenty thousand, three hundred twelve".