30122012211012 has 144 divisors (see below), whose sum is σ = 82800010605312. Its totient is φ = 9196212372480.

The previous prime is 30122012211001. The next prime is 30122012211013. The reversal of 30122012211012 is 21011221022103.

30122012211012 is a `hidden beast` number, since 301 + 220 + 1 + 22 + 110 + 12 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (30122012211013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5019778 + ... + 9243494.

It is an arithmetic number, because the mean of its divisors is an integer number (575000073648).

Almost surely, 2^{30122012211012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30122012211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41400005302656).

30122012211012 is an abundant number, since it is smaller than the sum of its proper divisors (52677998394300).

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

30122012211012 is a wasteful number, since it uses less digits than its factorization.

30122012211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224058 (or 4224053 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 30122012211012 its reverse (21011221022103), we get a palindrome (51133233233115).

The spelling of 30122012211012 in words is "thirty trillion, one hundred twenty-two billion, twelve million, two hundred eleven thousand, twelve".