22203020 has 96 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 6773760.

The previous prime is 22203011. The next prime is 22203043. The reversal of 22203020 is 2030222.

It is a junction number, because it is equal to n+sod(n) for n = 22202992 and 22203010.

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 31 ways as a sum of consecutive naturals, for example, 44975 + ... + 45465.

It is an arithmetic number, because the mean of its divisors is an integer number (619920).

Almost surely, 2^22203020 is an apocalyptic number.

22203020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22203020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29756160).

22203020 is an abundant number, since it is smaller than the sum of its proper divisors (37309300).

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

22203020 is a wasteful number, since it uses less digits than its factorization.

22203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 22203020 is about 4712.0080645092. The cubic root of 22203020 is about 281.0632195241.

Adding to 22203020 its reverse (2030222), we get a palindrome (24233242).

It can be divided in two parts, 2 and 2203020, that added together give a palindrome (2203022).

The spelling of 22203020 in words is "twenty-two million, two hundred three thousand, twenty".