2221242 has 8 divisors (see below), whose sum is σ = 4442496. Its totient is φ = 740412.

The previous prime is 2221231. The next prime is 2221249. The reversal of 2221242 is 2421222.

2221242 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.

2221242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2221249) 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, 185098 + ... + 185109.

It is an arithmetic number, because the mean of its divisors is an integer number (555312).

2^2221242 is an apocalyptic number.

2221242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221242 is a wasteful number, since it uses less digits than its factorization.

2221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370212.

The product of its digits is 128, while the sum is 15.

The square root of 2221242 is about 1490.3831722077. The cubic root of 2221242 is about 130.4763980158.

Adding to 2221242 its reverse (2421222), we get a palindrome (4642464).

The spelling of 2221242 in words is "two million, two hundred twenty-one thousand, two hundred forty-two".