22018801 has 16 divisors (see below), whose sum is σ = 26380800. Its totient is φ = 17978688.

The previous prime is 22018793. The next prime is 22018817. The reversal of 22018801 is 10881022.

It is not a de Polignac number, because 22018801 - 2³ = 22018793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22018201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15351 + ... + 16723.

It is an arithmetic number, because the mean of its divisors is an integer number (1648800).

Almost surely, 2^22018801 is an apocalyptic number.

It is an amenable number.

22018801 is a deficient number, since it is larger than the sum of its proper divisors (4361999).

22018801 is a wasteful number, since it uses less digits than its factorization.

22018801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 22018801 is about 4692.4195251490. The cubic root of 22018801 is about 280.2837302498.

Adding to 22018801 its reverse (10881022), we get a palindrome (32899823).

The spelling of 22018801 in words is "twenty-two million, eighteen thousand, eight hundred one".