212442204330 has 64 divisors (see below), whose sum is σ = 569447982720. Its totient is φ = 56357710848.

The previous prime is 212442204329. The next prime is 212442204349. The reversal of 212442204330 is 33402244212.

212442204330 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 4 + 220 + 433 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212442204294 and 212442204303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986292 + ... + 2090511.

It is an arithmetic number, because the mean of its divisors is an integer number (8897624730).

Almost surely, 2^212442204330 is an apocalyptic number.

212442204330 is an abundant number, since it is smaller than the sum of its proper divisors (357005778390).

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

212442204330 is a wasteful number, since it uses less digits than its factorization.

212442204330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077012 (or 4077006 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 212442204330 its reverse (33402244212), we get a palindrome (245844448542).

The spelling of 212442204330 in words is "two hundred twelve billion, four hundred forty-two million, two hundred four thousand, three hundred thirty".