42220022 has 8 divisors (see below), whose sum is σ = 68201616. Its totient is φ = 19486152.

The previous prime is 42219979. The next prime is 42220081. The reversal of 42220022 is 22002224.

42220022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42219979 and 42220006.

It is a congruent number.

It is an unprimeable number.

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, 811898 + ... + 811949.

It is an arithmetic number, because the mean of its divisors is an integer number (8525202).

Almost surely, 2^42220022 is an apocalyptic number.

42220022 is a deficient number, since it is larger than the sum of its proper divisors (25981594).

42220022 is a wasteful number, since it uses less digits than its factorization.

42220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623862.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42220022 is about 6497.6935908059. The cubic root of 42220022 is about 348.2085936196.

Adding to 42220022 its reverse (22002224), we get a palindrome (64222246).

The spelling of 42220022 in words is "forty-two million, two hundred twenty thousand, twenty-two".