22330220 has 24 divisors (see below), whose sum is σ = 51157008. Its totient is φ = 8120000.

The previous prime is 22330213. The next prime is 22330223. The reversal of 22330220 is 2203322.

It is a junction number, because it is equal to n+sod(n) for n = 22330195 and 22330204.

It is not an unprimeable number, because it can be changed into a prime (22330223) 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, 50531 + ... + 50970.

It is an arithmetic number, because the mean of its divisors is an integer number (2131542).

Almost surely, 2^22330220 is an apocalyptic number.

22330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22330220 is an abundant number, since it is smaller than the sum of its proper divisors (28826788).

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

22330220 is a wasteful number, since it uses less digits than its factorization.

22330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101521 (or 101519 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 22330220 is about 4725.4862183695. The cubic root of 22330220 is about 281.5989302161.

Adding to 22330220 its reverse (2203322), we get a palindrome (24533542).

It can be divided in two parts, 223302 and 20, that added together give a palindrome (223322).

The spelling of 22330220 in words is "twenty-two million, three hundred thirty thousand, two hundred twenty".