42220011 has 4 divisors (see below), whose sum is σ = 56293352. Its totient is φ = 28146672.

The previous prime is 42219979. The next prime is 42220081. The reversal of 42220011 is 11002224.

42220011 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 not a de Polignac number, because 42220011 - 2⁵ = 42219979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42220081) 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, 7036666 + ... + 7036671.

It is an arithmetic number, because the mean of its divisors is an integer number (14073338).

Almost surely, 2^42220011 is an apocalyptic number.

42220011 is a deficient number, since it is larger than the sum of its proper divisors (14073341).

42220011 is a wasteful number, since it uses less digits than its factorization.

42220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14073340.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42220011 is about 6497.6927443516. The cubic root of 42220011 is about 348.2085633789.

Adding to 42220011 its reverse (11002224), we get a palindrome (53222235).

The spelling of 42220011 in words is "forty-two million, two hundred twenty thousand, eleven".