22118606 has 4 divisors (see below), whose sum is σ = 33177912. Its totient is φ = 11059302.

The previous prime is 22118599. The next prime is 22118609. The reversal of 22118606 is 60681122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5529650 + ... + 5529653.

It is an arithmetic number, because the mean of its divisors is an integer number (8294478).

Almost surely, 2^22118606 is an apocalyptic number.

22118606 is a deficient number, since it is larger than the sum of its proper divisors (11059306).

22118606 is a wasteful number, since it uses less digits than its factorization.

22118606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11059305.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22118606 is about 4703.0422069125. The cubic root of 22118606 is about 280.7065743178.

Adding to 22118606 its reverse (60681122), we get a palindrome (82799728).

The spelling of 22118606 in words is "twenty-two million, one hundred eighteen thousand, six hundred six".