42212112 has 40 divisors (see below), whose sum is σ = 109305504. Its totient is φ = 14037504.

The previous prime is 42212047. The next prime is 42212113. The reversal of 42212112 is 21121224.

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

It is a junction number, because it is equal to n+sod(n) for n = 42212091 and 42212100.

It is not an unprimeable number, because it can be changed into a prime (42212113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27723 + ... + 29205.

Almost surely, 2^42212112 is an apocalyptic number.

It is an amenable number.

42212112 is an abundant number, since it is smaller than the sum of its proper divisors (67093392).

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

42212112 is a wasteful number, since it uses less digits than its factorization.

42212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2081 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 42212112 is about 6497.0848847772. The cubic root of 42212112 is about 348.1868464179.

Adding to 42212112 its reverse (21121224), we get a palindrome (63333336).

It can be divided in two parts, 42212 and 112, that added together give a palindrome (42324).

The spelling of 42212112 in words is "forty-two million, two hundred twelve thousand, one hundred twelve".