30012115122 has 96 divisors (see below), whose sum is σ = 71408361024. Its totient is φ = 9034473600.

The previous prime is 30012115121. The next prime is 30012115123. The reversal of 30012115122 is 22151121003.

30012115122 is a `hidden beast` number, since 30 + 0 + 121 + 1 + 512 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30012115121) and next prime (30012115123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30012115095 and 30012115104.

It is not an unprimeable number, because it can be changed into a prime (30012115121) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 25283413 + ... + 25284599.

It is an arithmetic number, because the mean of its divisors is an integer number (743837094).

Almost surely, 2^30012115122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30012115122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35704180512).

30012115122 is an abundant number, since it is smaller than the sum of its proper divisors (41396245902).

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

30012115122 is a wasteful number, since it uses less digits than its factorization.

30012115122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 30012115122 its reverse (22151121003), we get a palindrome (52163236125).

The spelling of 30012115122 in words is "thirty billion, twelve million, one hundred fifteen thousand, one hundred twenty-two".