30122223 has 4 divisors (see below), whose sum is σ = 40162968. Its totient is φ = 20081480.

The previous prime is 30122221. The next prime is 30122243. The reversal of 30122223 is 32222103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30122223 - 2¹ = 30122221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5020368 + ... + 5020373.

It is an arithmetic number, because the mean of its divisors is an integer number (10040742).

Almost surely, 2^30122223 is an apocalyptic number.

30122223 is a deficient number, since it is larger than the sum of its proper divisors (10040745).

30122223 is a wasteful number, since it uses less digits than its factorization.

30122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040744.

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

The square root of 30122223 is about 5488.3716164269. The cubic root of 30122223 is about 311.1446513679.

Adding to 30122223 its reverse (32222103), we get a palindrome (62344326).

The spelling of 30122223 in words is "thirty million, one hundred twenty-two thousand, two hundred twenty-three".