22812130 has 48 divisors (see below), whose sum is σ = 47832120. Its totient is φ = 7800320.

The previous prime is 22812107. The next prime is 22812149. The reversal of 22812130 is 3121822.

It can be written as a sum of positive squares in 4 ways, for example, as 14569489 + 8242641 = 3817^2 + 2871^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22812098 and 22812107.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20016 + ... + 21124.

Almost surely, 2^22812130 is an apocalyptic number.

22812130 is an abundant number, since it is smaller than the sum of its proper divisors (25019990).

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

22812130 is a wasteful number, since it uses less digits than its factorization.

22812130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 22812130 is about 4776.2045601084. The cubic root of 22812130 is about 283.6102651845.

Adding to 22812130 its reverse (3121822), we get a palindrome (25933952).

The spelling of 22812130 in words is "twenty-two million, eight hundred twelve thousand, one hundred thirty".