30121130122112 has 64 divisors (see below), whose sum is σ = 60783562641600. Its totient is φ = 14865754675200.

The previous prime is 30121130122099. The next prime is 30121130122159. The reversal of 30121130122112 is 21122103112103.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35795162 + ... + 36626982.

It is an arithmetic number, because the mean of its divisors is an integer number (949743166275).

Almost surely, 2^{30121130122112} is an apocalyptic number.

30121130122112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30121130122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30391781320800).

30121130122112 is an abundant number, since it is smaller than the sum of its proper divisors (30662432519488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30121130122112 is an equidigital number, since it uses as much as digits as its factorization.

30121130122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835495 (or 835483 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 30121130122112 its reverse (21122103112103), we get a palindrome (51243233234215).

The spelling of 30121130122112 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty million, one hundred twenty-two thousand, one hundred twelve".