312212230330 has 96 divisors (see below), whose sum is σ = 768023544960. Its totient is φ = 89827274880.

The previous prime is 312212230279. The next prime is 312212230357. The reversal of 312212230330 is 33032212213.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2157790 + ... + 2297929.

It is an arithmetic number, because the mean of its divisors is an integer number (8000245260).

Almost surely, 2^312212230330 is an apocalyptic number.

312212230330 is an abundant number, since it is smaller than the sum of its proper divisors (455811314630).

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

312212230330 is a wasteful number, since it uses less digits than its factorization.

312212230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455764 (or 4455757 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 312212230330 its reverse (33032212213), we get a palindrome (345244442543).

The spelling of 312212230330 in words is "three hundred twelve billion, two hundred twelve million, two hundred thirty thousand, three hundred thirty".