42222112 has 24 divisors (see below), whose sum is σ = 86740416. Its totient is φ = 20192832.

The previous prime is 42222107. The next prime is 42222119. The reversal of 42222112 is 21122224.

It is a Harshad number since it is a multiple of its sum of digits (16).

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

It is not an unprimeable number, because it can be changed into a prime (42222119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27948 + ... + 29419.

It is an arithmetic number, because the mean of its divisors is an integer number (3614184).

Almost surely, 2^42222112 is an apocalyptic number.

It is an amenable number.

42222112 is an abundant number, since it is smaller than the sum of its proper divisors (44518304).

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

42222112 is a wasteful number, since it uses less digits than its factorization.

42222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57400 (or 57392 counting only the distinct ones).

The product of its digits is 128, while the sum is 16.

The square root of 42222112 is about 6497.8544151127. The cubic root of 42222112 is about 348.2143392660.

Adding to 42222112 its reverse (21122224), we get a palindrome (63344336).

The spelling of 42222112 in words is "forty-two million, two hundred twenty-two thousand, one hundred twelve".