30122012 has 6 divisors (see below), whose sum is σ = 52713528. Its totient is φ = 15061004.

The previous prime is 30121999. The next prime is 30122017. The reversal of 30122012 is 21022103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30121984 and 30122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3765248 + ... + 3765255.

It is an arithmetic number, because the mean of its divisors is an integer number (8785588).

Almost surely, 2^30122012 is an apocalyptic number.

It is an amenable number.

30122012 is a deficient number, since it is larger than the sum of its proper divisors (22591516).

30122012 is a wasteful number, since it uses less digits than its factorization.

30122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530507 (or 7530505 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30122012 is about 5488.3523939339. The cubic root of 30122012 is about 311.1439248647.

Adding to 30122012 its reverse (21022103), we get a palindrome (51144115).

Subtracting from 30122012 its reverse (21022103), we obtain a palindrome (9099909).

The spelling of 30122012 in words is "thirty million, one hundred twenty-two thousand, twelve".