22216006 has 8 divisors (see below), whose sum is σ = 33464160. Its totient is φ = 11061288.

The previous prime is 22215989. The next prime is 22216009. The reversal of 22216006 is 60061222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22216009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22761 + ... + 23716.

It is an arithmetic number, because the mean of its divisors is an integer number (4183020).

Almost surely, 2^22216006 is an apocalyptic number.

22216006 is a deficient number, since it is larger than the sum of its proper divisors (11248154).

22216006 is a wasteful number, since it uses less digits than its factorization.

22216006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46718.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22216006 is about 4713.3858318623. The cubic root of 22216006 is about 281.1180044981.

Adding to 22216006 its reverse (60061222), we get a palindrome (82277228).

The spelling of 22216006 in words is "twenty-two million, two hundred sixteen thousand, six".