30220112 has 20 divisors (see below), whose sum is σ = 63055860. Its totient is φ = 13947648.

The previous prime is 30220111. The next prime is 30220121. The reversal of 30220112 is 21102203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2383936 + 27836176 = 1544^2 + 5276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30220093 and 30220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72437 + ... + 72852.

It is an arithmetic number, because the mean of its divisors is an integer number (3152793).

Almost surely, 2^30220112 is an apocalyptic number.

It is an amenable number.

30220112 is an abundant number, since it is smaller than the sum of its proper divisors (32835748).

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

30220112 is a wasteful number, since it uses less digits than its factorization.

30220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145310 (or 145304 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30220112 is about 5497.2822376152. The cubic root of 30220112 is about 311.4813319776.

Adding to 30220112 its reverse (21102203), we get a palindrome (51322315).

The spelling of 30220112 in words is "thirty million, two hundred twenty thousand, one hundred twelve".