30320222 has 4 divisors (see below), whose sum is σ = 45480336. Its totient is φ = 15160110.

The previous prime is 30320207. The next prime is 30320239. The reversal of 30320222 is 22202303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22202303 = 821 ⋅27043.

It is a junction number, because it is equal to n+sod(n) for n = 30320197 and 30320206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7580054 + ... + 7580057.

It is an arithmetic number, because the mean of its divisors is an integer number (11370084).

Almost surely, 2^30320222 is an apocalyptic number.

30320222 is a deficient number, since it is larger than the sum of its proper divisors (15160114).

30320222 is a wasteful number, since it uses less digits than its factorization.

30320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160113.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30320222 is about 5506.3801176453. The cubic root of 30320222 is about 311.8249003798.

Adding to 30320222 its reverse (22202303), we get a palindrome (52522525).

The spelling of 30320222 in words is "thirty million, three hundred twenty thousand, two hundred twenty-two".