212424320112 has 20 divisors (see below), whose sum is σ = 548762827080. Its totient is φ = 70808106688.

The previous prime is 212424320047. The next prime is 212424320137. The reversal of 212424320112 is 211023424212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212753287 + ... + 2212753382.

It is an arithmetic number, because the mean of its divisors is an integer number (27438141354).

Almost surely, 2^212424320112 is an apocalyptic number.

It is an amenable number.

212424320112 is an abundant number, since it is smaller than the sum of its proper divisors (336338506968).

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

212424320112 is a wasteful number, since it uses less digits than its factorization.

212424320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425506680 (or 4425506674 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212424320112 its reverse (211023424212), we get a palindrome (423447744324).

The spelling of 212424320112 in words is "two hundred twelve billion, four hundred twenty-four million, three hundred twenty thousand, one hundred twelve".