30122222 has 12 divisors (see below), whose sum is σ = 48926880. Its totient is φ = 13902408.

The previous prime is 30122221. The next prime is 30122243. The reversal of 30122222 is 22222103.

It is a junction number, because it is equal to n+sod(n) for n = 30122197 and 30122206.

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 5 ways as a sum of consecutive naturals, for example, 44222 + ... + 44897.

It is an arithmetic number, because the mean of its divisors is an integer number (4077240).

Almost surely, 2^30122222 is an apocalyptic number.

30122222 is a deficient number, since it is larger than the sum of its proper divisors (18804658).

30122222 is a wasteful number, since it uses less digits than its factorization.

30122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89147 (or 89134 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30122222 is about 5488.3715253252. The cubic root of 30122222 is about 311.1446479248.

Adding to 30122222 its reverse (22222103), we get a palindrome (52344325).

The spelling of 30122222 in words is "thirty million, one hundred twenty-two thousand, two hundred twenty-two".