42022117 has 4 divisors (see below), whose sum is σ = 42035616. Its totient is φ = 42008620.

The previous prime is 42022111. The next prime is 42022159. The reversal of 42022117 is 71122024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42022117 - 2¹⁹ = 41497829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42022094 and 42022103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022111) 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, 558 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (10508904).

Almost surely, 2^42022117 is an apocalyptic number.

It is an amenable number.

42022117 is a deficient number, since it is larger than the sum of its proper divisors (13499).

42022117 is an equidigital number, since it uses as much as digits as its factorization.

42022117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13498.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42022117 is about 6482.4468374218. The cubic root of 42022117 is about 347.6636690843.

The spelling of 42022117 in words is "forty-two million, twenty-two thousand, one hundred seventeen".