42222011 has 4 divisors (see below), whose sum is σ = 45469872. Its totient is φ = 38974152.

The previous prime is 42221989. The next prime is 42222023. The reversal of 42222011 is 11022224.

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 42222011 - 2⁶ = 42221947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42222041) 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 3 ways as a sum of consecutive naturals, for example, 1623911 + ... + 1623936.

It is an arithmetic number, because the mean of its divisors is an integer number (11367468).

Almost surely, 2^42222011 is an apocalyptic number.

42222011 is a deficient number, since it is larger than the sum of its proper divisors (3247861).

42222011 is a wasteful number, since it uses less digits than its factorization.

42222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247860.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42222011 is about 6497.8466433119. The cubic root of 42222011 is about 348.2140616099.

Adding to 42222011 its reverse (11022224), we get a palindrome (53244235).

The spelling of 42222011 in words is "forty-two million, two hundred twenty-two thousand, eleven".