30221300 has 18 divisors (see below), whose sum is σ = 65580438. Its totient is φ = 12088480.

The previous prime is 30221281. The next prime is 30221351. The reversal of 30221300 is 312203.

It can be written as a sum of positive squares in 3 ways, for example, as 5400976 + 24820324 = 2324^2 + 4982^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151007 + ... + 151206.

Almost surely, 2^30221300 is an apocalyptic number.

It is an amenable number.

30221300 is an abundant number, since it is smaller than the sum of its proper divisors (35359138).

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

30221300 is a wasteful number, since it uses less digits than its factorization.

30221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302227 (or 302220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30221300 is about 5497.3902899467. The cubic root of 30221300 is about 311.4854135306.

Adding to 30221300 its reverse (312203), we get a palindrome (30533503).

The spelling of 30221300 in words is "thirty million, two hundred twenty-one thousand, three hundred".