30333222 has 12 divisors (see below), whose sum is σ = 65722020. Its totient is φ = 10111068.

The previous prime is 30333211. The next prime is 30333227. The reversal of 30333222 is 22233303.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1685179 = 30333222 / (3 + 0 + 3 + 3 + 3 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30333195 and 30333204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30333227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842572 + ... + 842607.

It is an arithmetic number, because the mean of its divisors is an integer number (5476835).

Almost surely, 2^30333222 is an apocalyptic number.

30333222 is an abundant number, since it is smaller than the sum of its proper divisors (35388798).

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

30333222 is a wasteful number, since it uses less digits than its factorization.

30333222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685187 (or 1685184 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 30333222 is about 5507.5604399770. The cubic root of 30333222 is about 311.8694596896.

Adding to 30333222 its reverse (22233303), we get a palindrome (52566525).

The spelling of 30333222 in words is "thirty million, three hundred thirty-three thousand, two hundred twenty-two".