22016001 has 16 divisors (see below), whose sum is σ = 33666048. Its totient is φ = 12536400.

The previous prime is 22015943. The next prime is 22016009. The reversal of 22016001 is 10061022.

It is a de Polignac number, because none of the positive numbers 2^k-22016001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22016009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4846 + ... + 8216.

It is an arithmetic number, because the mean of its divisors is an integer number (2104128).

Almost surely, 2^22016001 is an apocalyptic number.

22016001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22016001 is a deficient number, since it is larger than the sum of its proper divisors (11650047).

22016001 is a wasteful number, since it uses less digits than its factorization.

22016001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22016001 is about 4692.1211621185. The cubic root of 22016001 is about 280.2718490744.

Adding to 22016001 its reverse (10061022), we get a palindrome (32077023).

The spelling of 22016001 in words is "twenty-two million, sixteen thousand, one".