30121130212 has 24 divisors (see below), whose sum is σ = 53251490880. Its totient is φ = 14906517600.

The previous prime is 30121130197. The next prime is 30121130261. The reversal of 30121130212 is 21203112103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414339 + ... + 1435477.

It is an arithmetic number, because the mean of its divisors is an integer number (2218812120).

Almost surely, 2^30121130212 is an apocalyptic number.

It is an amenable number.

30121130212 is a deficient number, since it is larger than the sum of its proper divisors (23130360668).

30121130212 is a wasteful number, since it uses less digits than its factorization.

30121130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24771 (or 24769 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30121130212 its reverse (21203112103), we get a palindrome (51324242315).

The spelling of 30121130212 in words is "thirty billion, one hundred twenty-one million, one hundred thirty thousand, two hundred twelve".