22113222 has 16 divisors (see below), whose sum is σ = 44438592. Its totient is φ = 7335720.

The previous prime is 22113191. The next prime is 22113229. The reversal of 22113222 is 22231122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7468 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (2777412).

Almost surely, 2^22113222 is an apocalyptic number.

22113222 is an abundant number, since it is smaller than the sum of its proper divisors (22325370).

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

22113222 is a wasteful number, since it uses less digits than its factorization.

22113222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17683.

The product of its digits is 96, while the sum is 15.

The square root of 22113222 is about 4702.4697766174. The cubic root of 22113222 is about 280.6837964079.

Adding to 22113222 its reverse (22231122), we get a palindrome (44344344).

The spelling of 22113222 in words is "twenty-two million, one hundred thirteen thousand, two hundred twenty-two".