22113320 has 16 divisors (see below), whose sum is σ = 49755060. Its totient is φ = 8845312.

The previous prime is 22113263. The next prime is 22113353. The reversal of 22113320 is 2331122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20376196 + 1737124 = 4514^2 + 1318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22113295 and 22113304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276377 + ... + 276456.

Almost surely, 2^22113320 is an apocalyptic number.

22113320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22113320 is an abundant number, since it is smaller than the sum of its proper divisors (27641740).

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

22113320 is a wasteful number, since it uses less digits than its factorization.

22113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552844 (or 552840 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22113320 is about 4702.4801966622. The cubic root of 22113320 is about 280.6842110463.

Adding to 22113320 its reverse (2331122), we get a palindrome (24444442).

The spelling of 22113320 in words is "twenty-two million, one hundred thirteen thousand, three hundred twenty".