22120042 has 8 divisors (see below), whose sum is σ = 37920096. Its totient is φ = 9480012.

The previous prime is 22120031. The next prime is 22120057. The reversal of 22120042 is 24002122.

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

It is an unprimeable number.

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, 789988 + ... + 790015.

It is an arithmetic number, because the mean of its divisors is an integer number (4740012).

Almost surely, 2^22120042 is an apocalyptic number.

22120042 is a deficient number, since it is larger than the sum of its proper divisors (15800054).

22120042 is a wasteful number, since it uses less digits than its factorization.

22120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580012.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22120042 is about 4703.1948715740. The cubic root of 22120042 is about 280.7126489308.

Adding to 22120042 its reverse (24002122), we get a palindrome (46122164).

The spelling of 22120042 in words is "twenty-two million, one hundred twenty thousand, forty-two".