42222424212 has 72 divisors (see below), whose sum is σ = 108669893696. Its totient is φ = 13819538304.

The previous prime is 42222424177. The next prime is 42222424217. The reversal of 42222424212 is 21242422224.

42222424212 is a `hidden beast` number, since 4 + 2 + 2 + 22 + 424 + 212 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222424217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726993 + ... + 782919.

Almost surely, 2^42222424212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42222424212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54334946848).

42222424212 is an abundant number, since it is smaller than the sum of its proper divisors (66447469484).

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

42222424212 is a wasteful number, since it uses less digits than its factorization.

42222424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56317 (or 56312 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

Adding to 42222424212 its reverse (21242422224), we get a palindrome (63464846436).

The spelling of 42222424212 in words is "forty-two billion, two hundred twenty-two million, four hundred twenty-four thousand, two hundred twelve".