22116612 has 24 divisors (see below), whose sum is σ = 58977856. Its totient is φ = 6319008.

The previous prime is 22116607. The next prime is 22116613. The reversal of 22116612 is 21661122.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (22116613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131563 + ... + 131730.

Almost surely, 2^22116612 is an apocalyptic number.

It is an amenable number.

22116612 is an abundant number, since it is smaller than the sum of its proper divisors (36861244).

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

22116612 is a wasteful number, since it uses less digits than its factorization.

22116612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263307 (or 263305 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 22116612 is about 4702.8302116917. The cubic root of 22116612 is about 280.6981387993.

Adding to 22116612 its reverse (21661122), we get a palindrome (43777734).

The spelling of 22116612 in words is "twenty-two million, one hundred sixteen thousand, six hundred twelve".