30112212121 has 8 divisors (see below), whose sum is σ = 30268080000. Its totient is φ = 29956670160.

The previous prime is 30112212103. The next prime is 30112212131. The reversal of 30112212121 is 12121221103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30112212121 - 2⁷ = 30112211993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30112212095 and 30112212104.

It is not an unprimeable number, because it can be changed into a prime (30112212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104880 + ... + 266878.

It is an arithmetic number, because the mean of its divisors is an integer number (3783510000).

Almost surely, 2^30112212121 is an apocalyptic number.

It is an amenable number.

30112212121 is a deficient number, since it is larger than the sum of its proper divisors (155867879).

30112212121 is a wasteful number, since it uses less digits than its factorization.

30112212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162959.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30112212121 its reverse (12121221103), we get a palindrome (42233433224).

The spelling of 30112212121 in words is "thirty billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-one".