22030512 has 80 divisors (see below), whose sum is σ = 65591040. Its totient is φ = 6241536.

The previous prime is 22030511. The next prime is 22030523. The reversal of 22030512 is 21503022.

It is a junction number, because it is equal to n+sod(n) for n = 22030491 and 22030500.

It is not an unprimeable number, because it can be changed into a prime (22030511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57939 + ... + 58317.

It is an arithmetic number, because the mean of its divisors is an integer number (819888).

Almost surely, 2^22030512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22030512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32795520).

22030512 is an abundant number, since it is smaller than the sum of its proper divisors (43560528).

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

22030512 is a wasteful number, since it uses less digits than its factorization.

22030512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 22030512 is about 4693.6672229718. The cubic root of 22030512 is about 280.3334123527. Note that the first 3 decimals are identical.

Adding to 22030512 its reverse (21503022), we get a palindrome (43533534).

The spelling of 22030512 in words is "twenty-two million, thirty thousand, five hundred twelve".