212430444426 has 32 divisors (see below), whose sum is σ = 475671240000. Its totient is φ = 70269610320.

The previous prime is 212430444409. The next prime is 212430444439. The reversal of 212430444426 is 624444034212.

212430444426 is a `hidden beast` number, since 212 + 430 + 4 + 4 + 4 + 4 + 2 + 6 = 666.

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, 15007801 + ... + 15021948.

It is an arithmetic number, because the mean of its divisors is an integer number (14864726250).

Almost surely, 2^212430444426 is an apocalyptic number.

212430444426 is an abundant number, since it is smaller than the sum of its proper divisors (263240795574).

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

212430444426 is a wasteful number, since it uses less digits than its factorization.

212430444426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30029891 (or 30029885 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 212430444426 its reverse (624444034212), we get a palindrome (836874478638).

The spelling of 212430444426 in words is "two hundred twelve billion, four hundred thirty million, four hundred forty-four thousand, four hundred twenty-six".