22123116 has 18 divisors (see below), whose sum is σ = 55922412. Its totient is φ = 7374360.

The previous prime is 22123097. The next prime is 22123133. The reversal of 22123116 is 61132122.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 307230 + ... + 307301.

Almost surely, 2^22123116 is an apocalyptic number.

It is an amenable number.

22123116 is an abundant number, since it is smaller than the sum of its proper divisors (33799296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22123116 is a wasteful number, since it uses less digits than its factorization.

22123116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614541 (or 614536 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 22123116 is about 4703.5216593527. The cubic root of 22123116 is about 280.7256517801.

Adding to 22123116 its reverse (61132122), we get a palindrome (83255238).

The spelling of 22123116 in words is "twenty-two million, one hundred twenty-three thousand, one hundred sixteen".