42271222 has 12 divisors (see below), whose sum is σ = 73759140. Its totient is φ = 18116196.

The previous prime is 42271169. The next prime is 42271223. The reversal of 42271222 is 22217224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42271193 and 42271202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42271223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215572 + ... + 215767.

It is an arithmetic number, because the mean of its divisors is an integer number (6146595).

Almost surely, 2^42271222 is an apocalyptic number.

42271222 is a deficient number, since it is larger than the sum of its proper divisors (31487918).

42271222 is a wasteful number, since it uses less digits than its factorization.

42271222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431355 (or 431348 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 42271222 is about 6501.6322565953. The cubic root of 42271222 is about 348.3492936733.

Adding to 42271222 its reverse (22217224), we get a palindrome (64488446).

The spelling of 42271222 in words is "forty-two million, two hundred seventy-one thousand, two hundred twenty-two".