214221615316 has 12 divisors (see below), whose sum is σ = 376959031540. Its totient is φ = 106519034880.

The previous prime is 214221615281. The next prime is 214221615367. The reversal of 214221615316 is 613516122412.

It can be written as a sum of positive squares in 2 ways, for example, as 40662722500 + 173558892816 = 201650^2 + 416604^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 147942381 + ... + 147943828.

Almost surely, 2^214221615316 is an apocalyptic number.

It is an amenable number.

214221615316 is a deficient number, since it is larger than the sum of its proper divisors (162737416224).

214221615316 is a wasteful number, since it uses less digits than its factorization.

214221615316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295886394 (or 295886392 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

Adding to 214221615316 its reverse (613516122412), we get a palindrome (827737737728).

The spelling of 214221615316 in words is "two hundred fourteen billion, two hundred twenty-one million, six hundred fifteen thousand, three hundred sixteen".