42224227 has 2 divisors, whose sum is σ = 42224228. Its totient is φ = 42224226.

The previous prime is 42224207. The next prime is 42224249. The reversal of 42224227 is 72242224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42224227 - 2¹⁵ = 42191459 is a prime.

It is not a weakly prime, because it can be changed into another prime (42224207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21112113 + 21112114.

It is an arithmetic number, because the mean of its divisors is an integer number (21112114).

Almost surely, 2^42224227 is an apocalyptic number.

42224227 is a deficient number, since it is larger than the sum of its proper divisors (1).

42224227 is an equidigital number, since it uses as much as digits as its factorization.

42224227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 25.

The square root of 42224227 is about 6498.0171591032. The cubic root of 42224227 is about 348.2201534472.

It can be divided in two parts, 422 and 24227, that added together give a square (24649 = 157²).

The spelling of 42224227 in words is "forty-two million, two hundred twenty-four thousand, two hundred twenty-seven".