44021222 has 8 divisors (see below), whose sum is σ = 75464976. Its totient is φ = 18866232.

The previous prime is 44021213. The next prime is 44021239. The reversal of 44021222 is 22212044.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 44021222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572173 + ... + 1572200.

It is an arithmetic number, because the mean of its divisors is an integer number (9433122).

Almost surely, 2^44021222 is an apocalyptic number.

44021222 is a deficient number, since it is larger than the sum of its proper divisors (31443754).

44021222 is a wasteful number, since it uses less digits than its factorization.

44021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144382.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 44021222 is about 6634.8490563087. The cubic root of 44021222 is about 353.0915827829.

Adding to 44021222 its reverse (22212044), we get a palindrome (66233266).

The spelling of 44021222 in words is "forty-four million, twenty-one thousand, two hundred twenty-two".