212215315 has 8 divisors (see below), whose sum is σ = 274247568. Its totient is φ = 156712800.

The previous prime is 212215291. The next prime is 212215343. The reversal of 212215315 is 513512212.

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

It is not a de Polignac number, because 212215315 - 2⁹ = 212214803 is a prime.

It is a Duffinian 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, 1632361 + ... + 1632490.

It is an arithmetic number, because the mean of its divisors is an integer number (34280946).

Almost surely, 2^212215315 is an apocalyptic number.

212215315 is a deficient number, since it is larger than the sum of its proper divisors (62032253).

212215315 is a wasteful number, since it uses less digits than its factorization.

212215315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264869.

The product of its digits is 600, while the sum is 22.

The square root of 212215315 is about 14567.6118495792. The cubic root of 212215315 is about 596.4749931375.

Adding to 212215315 its reverse (513512212), we get a palindrome (725727527).

The spelling of 212215315 in words is "two hundred twelve million, two hundred fifteen thousand, three hundred fifteen".