2221622 has 8 divisors (see below), whose sum is σ = 3588816. Its totient is φ = 1025352.

The previous prime is 2221589. The next prime is 2221631. The reversal of 2221622 is 2261222.

2221622 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 self number, because there is not a number n which added to its sum of digits gives 2221622.

It is a congruent number.

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, 42698 + ... + 42749.

It is an arithmetic number, because the mean of its divisors is an integer number (448602).

2^2221622 is an apocalyptic number.

2221622 is a deficient number, since it is larger than the sum of its proper divisors (1367194).

2221622 is a wasteful number, since it uses less digits than its factorization.

2221622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85462.

The product of its digits is 192, while the sum is 17.

The square root of 2221622 is about 1490.5106507503. The cubic root of 2221622 is about 130.4838380282.

Adding to 2221622 its reverse (2261222), we get a palindrome (4482844).

The spelling of 2221622 in words is "two million, two hundred twenty-one thousand, six hundred twenty-two".