215213310330 has 64 divisors (see below), whose sum is σ = 560233957248. Its totient is φ = 52696893440.

The previous prime is 215213310239. The next prime is 215213310379. The reversal of 215213310330 is 33013312512.

215213310330 is digitally balanced in base 2 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215213310330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5125272 + ... + 5167091.

It is an arithmetic number, because the mean of its divisors is an integer number (8753655582).

Almost surely, 2^215213310330 is an apocalyptic number.

215213310330 is an abundant number, since it is smaller than the sum of its proper divisors (345020646918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215213310330 is a wasteful number, since it uses less digits than its factorization.

215213310330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10292431.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 215213310330 its reverse (33013312512), we get a palindrome (248226622842).

The spelling of 215213310330 in words is "two hundred fifteen billion, two hundred thirteen million, three hundred ten thousand, three hundred thirty".