22018201822 has 8 divisors (see below), whose sum is σ = 33067241496. Its totient is φ = 10995787992.

The previous prime is 22018201817. The next prime is 22018201823. The reversal of 22018201822 is 22810281022.

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

It is a super-2 number, since 2×22018201822² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22018201823) 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, 6654393 + ... + 6657700.

It is an arithmetic number, because the mean of its divisors is an integer number (4133405187).

Almost surely, 2^22018201822 is an apocalyptic number.

22018201822 is a deficient number, since it is larger than the sum of its proper divisors (11049039674).

22018201822 is a wasteful number, since it uses less digits than its factorization.

22018201822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13312922.

The product of its (nonzero) digits is 2048, while the sum is 28.

Adding to 22018201822 its reverse (22810281022), we get a palindrome (44828482844).

The spelling of 22018201822 in words is "twenty-two billion, eighteen million, two hundred one thousand, eight hundred twenty-two".