212223312330 has 32 divisors (see below), whose sum is σ = 513843355584. Its totient is φ = 56092060416.

The previous prime is 212223312317. The next prime is 212223312341. The reversal of 212223312330 is 33213322212.

It is a self number, because there is not a number n which added to its sum of digits gives 212223312330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31297984 + ... + 31304763.

It is an arithmetic number, because the mean of its divisors is an integer number (16057604862).

Almost surely, 2^212223312330 is an apocalyptic number.

212223312330 is an abundant number, since it is smaller than the sum of its proper divisors (301620043254).

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

212223312330 is a wasteful number, since it uses less digits than its factorization.

212223312330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62602870.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 212223312330 its reverse (33213322212), we get a palindrome (245436634542).

The spelling of 212223312330 in words is "two hundred twelve billion, two hundred twenty-three million, three hundred twelve thousand, three hundred thirty".