42221227 has 4 divisors (see below), whose sum is σ = 43203160. Its totient is φ = 41239296.

The previous prime is 42221219. The next prime is 42221239. The reversal of 42221227 is 72212224.

It is a happy number.

42221227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42221227 - 2³ = 42221219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42221198 and 42221207.

It is not an unprimeable number, because it can be changed into a prime (42221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490902 + ... + 490987.

It is an arithmetic number, because the mean of its divisors is an integer number (10800790).

Almost surely, 2^42221227 is an apocalyptic number.

42221227 is a deficient number, since it is larger than the sum of its proper divisors (981933).

42221227 is an equidigital number, since it uses as much as digits as its factorization.

42221227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981932.

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

The square root of 42221227 is about 6497.7863153539. The cubic root of 42221227 is about 348.2119063241.

The spelling of 42221227 in words is "forty-two million, two hundred twenty-one thousand, two hundred twenty-seven".