215213330 has 8 divisors (see below), whose sum is σ = 387384012. Its totient is φ = 86085328.

The previous prime is 215213281. The next prime is 215213351. The reversal of 215213330 is 33312512.

215213330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199854769 + 15358561 = 14137^2 + 3919^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10760657 + ... + 10760676.

Almost surely, 2^215213330 is an apocalyptic number.

215213330 is a deficient number, since it is larger than the sum of its proper divisors (172170682).

215213330 is a wasteful number, since it uses less digits than its factorization.

215213330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21521340.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 215213330 is about 14670.1509876347. The cubic root of 215213330 is about 599.2707157852.

Adding to 215213330 its reverse (33312512), we get a palindrome (248525842).

The spelling of 215213330 in words is "two hundred fifteen million, two hundred thirteen thousand, three hundred thirty".