30222312 has 64 divisors (see below), whose sum is σ = 80179200. Its totient is φ = 9466560.

The previous prime is 30222307. The next prime is 30222373. The reversal of 30222312 is 21322203.

It is a junction number, because it is equal to n+sod(n) for n = 30222291 and 30222300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86923 + ... + 87269.

It is an arithmetic number, because the mean of its divisors is an integer number (1252800).

Almost surely, 2^30222312 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 30222312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40089600).

30222312 is an abundant number, since it is smaller than the sum of its proper divisors (49956888).

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

30222312 is a wasteful number, since it uses less digits than its factorization.

30222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30222312 is about 5497.4823328502. The cubic root of 30222312 is about 311.4888903248.

Adding to 30222312 its reverse (21322203), we get a palindrome (51544515).

The spelling of 30222312 in words is "thirty million, two hundred twenty-two thousand, three hundred twelve".